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111 Commits

Author SHA1 Message Date
GitHub Actions c30adb409c chore(release): @wxt-dev/i18n v0.2.2
vhs / vhs (push) Waiting to run
2024-10-23 13:44:57 +00:00
Bread Grocery ab83031462 feat: Add support for configuring the locales directory (#1109) 2024-10-23 08:39:30 -05:00
imnaK cd7285c3ef docs: fix wrong anchor to "Environment Variables" (#1107) 2024-10-22 22:58:22 -05:00
Aaron bdb775c88d Update changelog 2024-10-22 09:58:51 -05:00
Aaron d20793d5e6 docs: Use full URLs in README so they work on the docs site 2024-10-22 09:50:57 -05:00
GitHub Actions ae1e276577 chore(release): wxt v0.19.13
vhs / vhs (push) Waiting to run
2024-10-22 13:45:03 +00:00
Craig Slusher c031c6e82e feat(env): Load env from .env.[browser] variants (#1078)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-10-22 08:36:24 -05:00
Malix d06f8128f5 enhance(docs): comparison to real footnotes (#1096)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-10-22 08:35:23 -05:00
Florian Metz 6ba12e9736 feat: unocss module (#1043)
vhs / vhs (push) Waiting to run
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-10-22 08:28:02 -05:00
Aaron 0092556c1a fix: Don't use #private member variables in ContentScriptContext (#1103) 2024-10-22 08:04:50 -05:00
Semro 9721bca5a1 docs: Add "Sync Watch" extension to homepage (#1098) 2024-10-21 19:48:03 -05:00
Aaron 1b138f86b9 docs: Remove duplicate env data 2024-10-21 08:48:52 -05:00
GitHub Actions e839671f13 chore(release): wxt v0.19.12
vhs / vhs (push) Waiting to run
2024-10-19 19:02:32 +00:00
Aaron 842c158f96 chore: Enable extensionApi: chrome in template projects (#1083) 2024-10-19 02:38:45 -05:00
GitHub Actions b14c9107fe chore(release): @wxt-dev/i18n v0.2.1
vhs / vhs (push) Waiting to run
2024-10-19 05:49:58 +00:00
Aaron 21894d2890 chore: Fix typo in internal function name 2024-10-19 00:45:07 -05:00
Aaron 22b529453f fix: Add missing "type" keyword to type export in generated file 2024-10-19 00:43:38 -05:00
Aaron 4ec2ece85f docs: Add missing redirect for dead link 2024-10-19 00:13:11 -05:00
Aaron cee1424a4c fix: Ensure consistent hook execution order and add docs (#1081) 2024-10-18 22:08:14 -05:00
Florian Metz d09cf6d4b1 feat(config): Add outDirTemplate for customizing output directory structure (#1074)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-10-18 16:32:11 -05:00
MultiViewer 9affa07639 docs: Add "MultiViewer Companion" to homepage (#1079) 2024-10-18 13:39:05 -05:00
Aaron cde060ff4f docs: Add migration step for Plasmo --tag to WXT --mode 2024-10-18 13:00:01 -05:00
Florian Metz 1a9cd438d9 chore: shrink down on dependencies (#1050) 2024-10-18 10:47:12 -05:00
Aaron 1dbb5a468d feat: Add support for WXT_ environment variable prefix (#1076) 2024-10-18 10:43:39 -05:00
Aaron 1fe01290c0 docs: Rewrite and restructure the documentation website (#933)
Co-authored-by: aklinker1 <aklinker1@users.noreply.github.com>
2024-10-18 09:28:26 -05:00
Avi 1b900e942b Update UsingWxtSection.vue (#1063) 2024-10-14 16:14:28 -05:00
John Wu 8e527dc96b docs: Add "WebChat" to homepage (#1061)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-10-11 13:39:07 -05:00
uncenter 1f7ad781df docs: Add "Catppuccin for GitHub File Explorer Icons" to homepage (#1060) 2024-10-11 13:29:18 -05:00
dsrrlldr c2b151be11 docs: Add "Habit Tracker" to homepage (#1054) 2024-10-06 07:57:11 -05:00
Aaron a0b63e7350 ci: Add missing packages to sync-releases workflow 2024-10-04 18:20:46 -05:00
Aaron 10902351be Fix changelog 2024-10-04 18:19:33 -05:00
GitHub Actions 1c3009a48f chore(release): @wxt-dev/i18n v0.2.0
vhs / vhs (push) Waiting to run
2024-10-04 23:12:34 +00:00
Aaron 6c6087249f fix!: Remove invalid options argument (#1048) 2024-10-04 18:07:57 -05:00
Aaron 539d482f71 chore: Remove TS compilerOptions.noUnusedLocals because Oxlint already does it (#1047) 2024-10-04 16:48:35 -05:00
Aaron cab97bca1e perf: Downgrade esbuild so a single version is shared between sub-dependencies (#1045) 2024-10-04 16:48:25 -05:00
Florian Metz 6020083b89 perf: Replace execa with nano-spawn for smaller package size (#1042) 2024-10-04 16:38:06 -05:00
GitHub Actions 947b24f1b0 chore(release): @wxt-dev/i18n v0.1.1
vhs / vhs (push) Waiting to run
2024-10-04 18:24:18 +00:00
windmillcode0 2c5ba64b61 fix: Friendly error messages for null and undefined values inside message files (#1041)
Co-authored-by: windmillcode0 <michaelodumosu57@gmail.com>
2024-10-04 13:19:35 -05:00
Aaron faa4fcb718 chore: Upgrade all non-major dependencies (#1040) 2024-10-03 18:47:16 -05:00
dependabot[bot] 8e9b67fea2 chore(deps): bump execa from 9.3.1 to 9.4.0 (#1031)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-10-03 18:24:43 -05:00
dependabot[bot] 659bdd46a0 chore(deps): bump linkedom from 0.18.4 to 0.18.5 (#1034)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-10-03 13:25:47 -05:00
dependabot[bot] edcc411d26 chore(deps-dev): bump changelogen from 0.5.5 to 0.5.7 (#1019)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-10-03 13:25:11 -05:00
dependabot[bot] e022423bad chore(deps): bump @vitejs/plugin-vue from 5.1.1 to 5.1.4 (#1020)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-10-03 13:13:24 -05:00
dependabot[bot] 84e1fd44eb chore(deps): bump esbuild from 0.23.0 to 0.24.0 (#1018)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-10-03 13:13:00 -05:00
dependabot[bot] b68d1ff828 chore(deps): bump magicast from 0.3.4 to 0.3.5 (#1017)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-10-03 13:11:46 -05:00
dependabot[bot] c31a5c30ed chore(deps): bump stefanzweifel/git-auto-commit-action from 4 to 5 (#1022)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-10-03 13:10:26 -05:00
Aaron 5b408c2bc2 chore: Update dependabot configuration 2024-10-03 13:09:01 -05:00
mezannic ca29419db6 chore: remove email from changelog (#1027) 2024-10-03 13:04:33 -05:00
Aaron ab26bdc7c1 fix: Use directory name when zip.name and package.json#name are not provided (#1028) 2024-10-03 12:26:36 -05:00
GitHub Actions d270250633 chore(release): wxt v0.19.11
vhs / vhs (push) Waiting to run
2024-10-02 13:59:29 +00:00
Florian Metz d75f64df79 feat(zip): wxt zip --sources and auto sources for opera (#1014)
Co-authored-by: Timeraa <Timeraa@users.noreply.github.com>
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-10-02 08:55:08 -05:00
Gurvir Singh 5faa5d7537 fix: #1005 fixed, by updating type-definations to getItem method. (#1007)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-10-02 08:20:32 -05:00
mezannic 177223c625 fix: Reverse env files priority (#1016)
Co-authored-by: Mathieu Ezannic <mathieu.ezannic@plebicom.com>
2024-10-01 16:00:52 -05:00
deyu a64ff22917 docs: Add "Discord Message Translator" extension to homepage (#1011) 2024-09-29 21:57:23 -05:00
Gourav Goyal 0bf08329b0 docs: Add "ChatGPT Writer" to homepage (#1006) 2024-09-27 20:50:21 -05:00
Guilherme Oenning e3f00d2797 docs: Add "Dofollow Links for SEO" to homepage (#1001)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-09-27 08:03:06 -05:00
Andy Zhou 09de72895e docs: Add "social-media-copilot" to homepage (#1000) 2024-09-27 08:02:23 -05:00
Aaron c0aa12089e chore: Move some files around (#996) 2024-09-25 20:54:40 -05:00
Aaron 0248f58785 chore: Add Aaron back to changelog contributions 2024-09-25 20:11:02 -05:00
Florian Metz 247cd66f74 feat(zip): hooks (#993)
Co-authored-by: Timeraa <Timeraa@users.noreply.github.com>
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-09-25 20:08:54 -05:00
GitHub Actions 4a1bd41df9 chore(release): wxt v0.19.10
vhs / vhs (push) Waiting to run
2024-09-22 14:20:12 +00:00
1natsu efcb593718 perf: Reduce hypersensitive onChange of watcher (#978)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-09-22 09:12:29 -05:00
Okinea Dev a82c7cbf71 docs: Improved docs and links (#970)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-09-22 08:45:30 -05:00
renxinyan db60e79a99 docs: Correct the type example of allFrames (#988) 2024-09-21 19:03:07 -05:00
Jarle Mathiesen 722eff145f docs: Add "YouTube Summarized" to homepage (#986) 2024-09-20 07:55:58 -05:00
Zain Hasan 282458748d docs: Fix small typo in introduction (#983) 2024-09-16 21:20:53 -05:00
the-syndrome 26197f11a3 docs: examples reference outDir vs. outputDir (#982) 2024-09-15 07:58:52 -05:00
aklinker1 9d560f9798 docs: Update wxt init GIF 2024-09-14 20:45:33 +00:00
Okinea Dev 786292c95e docs: Add wxt init demo GIF (#974)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
Co-authored-by: okineadev <okineadev@users.noreply.github.com>
2024-09-14 15:44:15 -05:00
rxliuli e760ee444e chore(template): set type to "module" for Svelte template (#977) 2024-09-12 08:07:11 -05:00
kongmoumou 78f91fefb6 chore: Continuous publish using pkg.pr.new (#955) 2024-09-11 00:40:42 -05:00
Aaron Klinker fda1e18f48 types: Fix ExtensionRunnerConfig.chromiumPref type
Closes #964
2024-09-10 16:29:36 -05:00
hikiko4ern c94168e2d1 fix: Fix config manifest type (#973) 2024-09-10 16:13:08 -05:00
GitHub Actions 3eb505dbde chore(release): wxt v0.19.9 2024-09-04 21:39:24 +00:00
1natsu fbe502fddf chore: Cleanup leftover E2E test artifacts (#968) 2024-09-04 16:35:18 -05:00
1natsu c143a9978d fix: Properly overload import.meta.env with WXT's own environment globals (#966) 2024-09-03 14:35:10 -05:00
Aaron Klinker e3555b663d Update description after 447d011 2024-09-03 14:34:32 -05:00
Aaron Klinker df934d252c Correct version number after 447d011 2024-09-03 14:31:27 -05:00
Aaron Klinker 447d011b8f docs: Retroactively mention breaking change in v0.18.5
See https://github.com/wxt-dev/wxt/discussions/950#discussioncomment-10512337
2024-09-03 14:30:10 -05:00
Aaron abe1263d27 feat: Use @types/chrome for config manifest type (#969) 2024-09-03 14:11:24 -05:00
Aaron Klinker 143b5ac81f docs: Add docs around importEntrypoint to relevant functions 2024-09-03 13:40:59 -05:00
dependabot[bot] 87fbb1f4c3 chore(deps): bump execa from 9.3.0 to 9.3.1 (#957)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-09-03 12:12:22 -05:00
dependabot[bot] 62f11bf605 chore(deps): bump sharp from 0.33.4 to 0.33.5 (#959)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-09-03 12:10:02 -05:00
dependabot[bot] 3ead54b58e chore(deps): bump unimport from 3.9.1 to 3.11.1 (#960)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-09-03 12:08:44 -05:00
dependabot[bot] 580f4f3cfe chore(deps): bump ora from 8.0.1 to 8.1.0 (#961)
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2024-09-03 12:08:04 -05:00
1natsu da0accebe8 fix: duplicate BuildOutput.publicAssets (#951)
Co-authored-by: Aaron Klinker <aaronklinker1@gmail.com>
2024-09-03 12:06:21 -05:00
Aaron eb65d0b42a docs: Add link to testing permission changes in Firefox 2024-09-03 07:34:43 -05:00
Alex Nguyen c2784135b0 docs: Fix typo in frontend-frameworks.md (#952) 2024-09-01 19:43:11 -05:00
Aaron 61d54bd1f9 fix: Allow adding multiple hyphens in an entrypoint name (#949) 2024-08-30 04:56:23 -05:00
Aaron 0bd94fce3b chore: Add oxlint for linting (#947) 2024-08-30 04:14:20 -05:00
Amal Chandran 2a97c06443 docs: Add "Draftly" to homepage (#941)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-08-30 02:51:32 -05:00
Aaron 8213aa776a chore: Fix type error (#946) 2024-08-30 02:45:36 -05:00
Aaron 026f78254d chore: Upgrade unbuild from 1.1.0 to 1.1.1 2024-08-29 08:19:56 -05:00
Aaron 0ebb013ba6 types(modules): Use NestedHooks instead of Partial for hooks object 2024-08-29 07:12:58 -05:00
Aaron c5f78d0c8d feat(modules): Add wxt.hook alias for wxt.hooks.hook 2024-08-29 07:12:13 -05:00
GitHub Actions 8771676e69 chore(release): wxt v0.19.8 2024-08-29 11:53:13 +00:00
1natsu aebbbb0685 fix: Fallback to GitHub API for listing templates when ungh is down (#944)
Co-authored-by: Aaron <aaronklinker1@gmail.com>
2024-08-29 06:48:38 -05:00
Aaron 68183b648e chore(types): Cleanup types in wxt/browser/chrome (#932) 2024-08-23 08:49:39 -05:00
Aaron Klinker 45809c0198 chore: Update lockfile 2024-08-19 23:08:40 -05:00
Aaron Klinker 13163c9ba1 chore(dev-deps): Upgrade @aklinker1/buildc from v1.0.11 to v1.1.0 2024-08-19 21:49:01 -05:00
1natsu aedbba3f3d perf: Ignore output directories for all vite.watcher (#924) 2024-08-19 21:44:27 -05:00
GitHub Actions 763dbd5ee8 chore(release): wxt v0.19.7 2024-08-19 15:40:58 +00:00
Aaron 5821ae0e8c feat: New @wxt-dev/i18n package (#758) 2024-08-19 09:18:01 -05:00
Aaron 751706d2ae docs: Fix module name for wxt/browser/chrome 2024-08-19 09:08:53 -05:00
Aaron cf8554718d feat(modules): Add addAlias helper (#928) 2024-08-18 15:20:12 -05:00
Aaron 5f653b3ff9 fix: Ensure TSConfig paths start with ../ or ./ so they are valid (#927) 2024-08-18 15:18:23 -05:00
Aaron 5f2e1c38a7 chore: Remove warning log for missing public directory 2024-08-18 15:10:07 -05:00
Aaron 8a9d8be8a4 feat(testing): Run WXT modules when setting up test environment (#926) 2024-08-18 15:08:45 -05:00
Aaron 067b2eccf3 fix(testing): Stub chrome and browser globals with fakeBrowser automatically (#925) 2024-08-18 14:56:15 -05:00
Aaron 2e1bd6ec93 chore: Update demo package cache behavior 2024-08-18 14:49:29 -05:00
Aaron b463cef1c2 Update changelog 2024-08-16 15:59:58 -05:00
220 changed files with 8455 additions and 4817 deletions
+5
View File
@@ -1,5 +1,9 @@
name: Basic Setup
description: Install PNPM, Node, and dependencies
inputs:
install:
default: 'true'
description: Whether or not to run 'pnpm install'
runs:
using: composite
steps:
@@ -11,5 +15,6 @@ runs:
node-version: 18
cache: pnpm
- name: Install Dependencies
if: ${{ inputs.install == 'true' }}
shell: bash
run: pnpm install
+3 -1
View File
@@ -6,7 +6,9 @@
version: 2
updates:
- package-ecosystem: npm
directory: '/' # Location of package manifests
directories:
- /
- packages/*
schedule:
interval: 'monthly'
- package-ecosystem: 'github-actions'
+17
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@@ -0,0 +1,17 @@
name: Continuous Publish
on:
push:
branches:
- main
pull_request:
branches:
- main
jobs:
build:
runs-on: ubuntu-22.04
steps:
- uses: actions/checkout@v4
- uses: ./.github/actions/setup
- run: pnpm buildc all
- run: pnpx pkg-pr-new publish --compact './packages/*'
+2
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@@ -12,6 +12,8 @@ on:
jobs:
publish:
# Only run if it's the upstream repository, not forks
if: github.repository == 'wxt-dev/wxt'
runs-on: ubuntu-22.04
steps:
- uses: actions/checkout@v4
+7 -5
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@@ -7,12 +7,14 @@ on:
default: wxt
type: choice
options:
- wxt
- module-react
- module-vue
- module-svelte
- module-solid
- auto-icons
- i18n
- module-react
- module-solid
- module-svelte
- module-vue
- unocss
- wxt
jobs:
validate:
+2
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@@ -12,6 +12,8 @@ on:
- module-vue
- module-svelte
- module-solid
- auto-icons
- i18n
jobs:
sync:
+29
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@@ -0,0 +1,29 @@
name: vhs
on:
push:
paths:
- 'docs/tapes/*.tape'
workflow_dispatch:
jobs:
vhs:
runs-on: ubuntu-22.04
steps:
- uses: actions/checkout@v4
- uses: ./.github/actions/setup
with:
install: 'false'
- name: Preinstall WXT
run: |
pnpm store add wxt@latest
pnpm dlx wxt@latest --version
- uses: charmbracelet/vhs-action@v2.1.0
with:
path: 'docs/tapes/init-demo.tape'
- uses: stefanzweifel/git-auto-commit-action@v5
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
with:
commit_message: 'docs: Update `wxt init` GIF'
# https://github.com/charmbracelet/vhs#output
file_pattern: 'docs/assets/*.gif'
+2 -2
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@@ -1,6 +1,6 @@
# Contributing
Everyone is welcome to contribute to WXT!
Everyone is welcome to contribute to **WXT**!
If you are changing the docs or fixing a bug, feel free to fork and open a PR.
@@ -139,7 +139,7 @@ Releases are done with GitHub actions:
Use [`taze`](https://www.npmjs.com/package/taze) to upgrade dependencies throughout the entire monorepo.
```ts
```sh
pnpm dlx taze -r
```
+26 -8
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@@ -1,16 +1,16 @@
<h1 align="center">
<img style="vertical-align:middle" width="44" src="https://raw.githubusercontent.com/wxt-dev/wxt/HEAD/docs/public/hero-logo.svg" alt="WXT Logo">
<img align="top" width="44" src="https://raw.githubusercontent.com/wxt-dev/wxt/HEAD/docs/public/hero-logo.svg" alt="WXT Logo">
<span>WXT</span>
</h1>
<p align="center">
<a href="https://www.npmjs.com/package/wxt" target="_blank"><img alt="npm" src="https://img.shields.io/npm/v/wxt?labelColor=black&color=%234fa048"></a>
<a href="https://www.npmjs.com/package/wxt" target="_blank"><img alt="npm version" src="https://img.shields.io/npm/v/wxt?labelColor=black&color=%234fa048"></a>
<span> </span>
<a href="https://www.npmjs.com/package/wxt" target="_blank"><img alt="npm" src="https://img.shields.io/npm/dm/wxt?labelColor=black&color=%234fa048"></a>
<a href="https://www.npmjs.com/package/wxt" target="_blank"><img alt="downloads" src="https://img.shields.io/npm/dm/wxt?labelColor=black&color=%234fa048"></a>
<span> </span>
<a href="https://github.com/wxt-dev/wxt/blob/main/LICENSE" target="_blank"><img alt="NPM" src="https://img.shields.io/npm/l/wxt?labelColor=black&color=%234fa048"></a>
<a href="https://github.com/wxt-dev/wxt/blob/main/LICENSE" target="_blank"><img alt="license | MIT" src="https://img.shields.io/npm/l/wxt?labelColor=black&color=%234fa048"></a>
<span> </span>
<a href="https://codecov.io/github/wxt-dev/wxt" target="_blank"><img alt="Codecov" src="https://img.shields.io/codecov/c/github/wxt-dev/wxt?labelColor=black&color=%234fa048"></a>
<a href="https://codecov.io/github/wxt-dev/wxt" target="_blank"><img alt="coverage" src="https://img.shields.io/codecov/c/github/wxt-dev/wxt?labelColor=black&color=%234fa048"></a>
</p>
<p align="center">
@@ -43,10 +43,21 @@ https://github.com/wxt-dev/wxt/assets/10101283/4d678939-1bdb-495c-9c36-3aa281d84
Bootstrap a new project:
<!-- automd:pm-x version="latest" name="wxt" args="init" -->
```sh
pnpm dlx wxt@latest init <project-name>
# npm
npx wxt@latest init
# pnpm
pnpm dlx wxt@latest init
# bun
bunx wxt@latest init
```
<!-- /automd -->
Or see the [installation guide](https://wxt.dev/guide/installation.html) to get started with WXT.
## Features
@@ -59,13 +70,20 @@ Or see the [installation guide](https://wxt.dev/guide/installation.html) to get
- 🦾 Auto-imports
- 🤖 Automated publishing
- 🎨 Frontend framework agnostic: works with Vue, React, Svelte, etc
- 📦 Modular architecture with [WXT modules](https://wxt.dev/guide/go-further/reusable-modules.html#overview)
- 📦 [Module system](https://wxt.dev/guide/essentials/wxt-modules.html#overview) for reusing code between extensions
- 🖍️ Quickly bootstrap a new project
- 📏 Bundle analysis
- ⬇️ Download and bundle remote URL imports
## Contributors
<!-- automd:contributors author="aklinker1" license="MIT" github="wxt-dev/wxt" -->
Published under the [MIT](https://github.com/wxt-dev/wxt/blob/main/LICENSE) license.
Made by [@aklinker1](https://github.com/aklinker1) and [community](https://github.com/wxt-dev/wxt/graphs/contributors) 💛
<br><br>
<a href="https://github.com/wxt-dev/wxt/graphs/contributors">
<img src="https://contrib.rocks/image?repo=wxt-dev/wxt" />
<img src="https://contrib.rocks/image?repo=wxt-dev/wxt" />
</a>
<!-- /automd -->
-116
View File
@@ -1,116 +0,0 @@
# Development
WXT's main goal is providing the best DX it possibly can. When running your extension in dev mode, each part of your extension is reloaded separately when possible.
| | HMR | Reloaded individually | Reload extension | Restart browser |
| ------------------- | :-: | :-------------------: | :--------------: | :----------------------------------------------------: |
| HTML File | | ✅ |
| HTML Dependency | ✅ |
| MV3 Content Script | | ✅ |
| MV2 Content Script | | | ✅ |
| Background | | | ✅ |
| manifest.json | | | | 🟡 See [#16](https://github.com/wxt-dev/wxt/issues/16) |
| `wxt.config.ts` | | | | 🟡 See [#10](https://github.com/wxt-dev/wxt/issues/10) |
| `web-ext.config.ts` | | | | 🟡 See [#10](https://github.com/wxt-dev/wxt/issues/10) |
## Dev Mode vs Production Builds
There are some notable differences between the development and production versions of an extension. During development:
1. **Content scripts are not listed in the `manifest.json`** when targeting MV3. Instead, the [`scripting`](https://developer.chrome.com/docs/extensions/reference/api/scripting) permission is used to register content scripts at runtime so they can be reloaded individually.
To get the list of content scripts during development, run the following in the background's console:
```ts
await chrome.scripting.getRegisteredContentScripts();
```
2. **The CSP is modified to allow loading scripts from the dev server**. Make sure you're using Chrome v110 or above for HMR to work.
3. If you don't include a background script/service worker, one will be created to perform various tasks in dev mode, mostly related to reloading different parts of the extension on change.
For production builds, none of the above modifications will be applied, and you're extension/manifest will only include what you have defined.
## Configure Browser Startup
WXT uses [`web-ext` by Mozilla](https://github.com/mozilla/web-ext) to automatically open a browser with the extension installed. You can configure the runner's behavior via the [`runner`](/api/reference/wxt/interfaces/InlineConfig#runner) option, or in a separate gitignored file, `web-ext.config.ts`.
:::code-group
```ts [wxt.config.ts]
import { defineConfig } from 'wxt';
export default defineConfig({
runner: {
// Runner config
},
});
```
```ts [web-ext.config.ts]
import { defineRunnerConfig } from 'wxt';
export default defineRunnerConfig({
// Runner config
});
```
:::
### Browser Binaries
`web-ext`'s browser discovery is very limited. By default, it only guesses at where Chrome and Firefox are installed. If you've customized your install locations, you may need to tell `web-ext` where the binaries/executables are located using the [`binaries` option](/api/reference/wxt/interfaces/ExtensionRunnerConfig#binaries). For other Chromium based browsers, like Edge or Opera, you'll need to explicitly list them in the `binaries` option as well, otherwise they will open in Chrome by default.
```ts
// ~/web-ext.config.ts
import { defineRunnerConfig } from 'wxt';
export default defineRunnerConfig({
binaries: {
chrome: '/path/to/chrome-beta', // Use Chrome Beta instead of regular Chrome
firefox: 'firefoxdeveloperedition', // Use Firefox Developer Edition instead of regular Firefox
edge: '/path/to/edge', // Open MS Edge when running "wxt -b edge"
},
});
```
:::tip
When configuring browser binaries, it's helpful to put them in `~/web-ext.config.ts` instead of the project directory's `web-ext.config.ts` file. When placed in your home directory (`~/`), this config will be used by all WXT projects, so you only need to configure the binaries once.
:::
### Other options
You can customize other options as well, like startup URLs, profiles, or additional command line arguments:
```ts
// web-ext.config.ts
import { defineRunnerConfig } from 'wxt';
export default defineRunnerConfig({
startUrls: ['https://google.com', 'https://duckduckgo.com'],
chromiumProfile: '/path/to/profile/to/use',
chromiumArgs: ['--window-size=400,300'],
});
```
For a full list of options, see the [API Reference](/api/reference/wxt/interfaces/ExtensionRunnerConfig).
## Reload the Extension
Normally, to manually reload an extension, you have to visit `chrome://extensions` and click the reload button for your extension.
When running `wxt` command to start the dev server, WXT adds a keyboard shortcut `Alt+R`, that reloads the extension when pressed, without visiting `chrome://extensions`. This can also be customized or disabled:
```ts [wxt.config.ts]
import { defineConfig } from 'wxt';
export default defineConfig({
dev: {
reloadCommand: 'Alt+T', // false, to disable
},
});
```
:::info
This shortcut is only available during development, and is not be added to your extension when running `wxt build` or `wxt-zip`.
:::
@@ -8,14 +8,14 @@ const props = defineProps<{
<table class="no-vertical-dividers">
<thead>
<tr>
<th>Input Pattern</th>
<th style="width: 100%">Filename</th>
<th></th>
<th>Output Path</th>
</tr>
</thead>
<tbody>
<tr v-for="pattern of patterns">
<td style="white-space: nowrap">
<td style="white-space: nowrap; padding-right: 8px">
<code>entrypoints/{{ pattern[0] }}</code>
</td>
<td style="padding: 6px; opacity: 50%">
@@ -31,7 +31,7 @@ const props = defineProps<{
/>
</svg>
</td>
<td style="white-space: nowrap">
<td style="white-space: nowrap; padding-left: 8px">
<code>/{{ pattern[1] }}</code>
</td>
</tr>
@@ -38,6 +38,18 @@ const chromeExtensionIds = [
'cfkdcideecefncbglkhneoflfnmhoicc', // mindful - stay focused on your goals
'lnhejcpclabmbgpiiomjbhalblnnbffg', // 1Proompt
'fonflmjnjbkigocpoommgmhljdpljain', // NiceTab - https://github.com/web-dahuyou/NiceTab
'fcffekbnfcfdemeekijbbmgmkognnmkd', // Draftly for LinkedIn
'nkndldfehcidpejfkokbeghpnlbppdmo', // YouTube Summarized - Summarize any YouTube video
'dbichmdlbjdeplpkhcejgkakobjbjalc', // 社媒助手 - https://github.com/iszhouhua/social-media-copilot
'opepfpjeogkbgeigkbepobceinnfmjdd', // Dofollow Links for SEO
'pdnenlnelpdomajfejgapbdpmjkfpjkp', // ChatGPT Writer: Use AI on Any Site (GPT-4o, Claude, Gemini, and More)
'jobnhifpphkgoelnhnopgkdhbdkiadmj', // discord message translator
'ncokhechhpjgjonhjnlaneglmdkfkcbj', // Habit Tracker app widget for daily habit tracking
'lnjaiaapbakfhlbjenjkhffcdpoompki', // Catppuccin for GitHub File Explorer Icons
'cpaedhbidlpnbdfegakhiamfpndhjpgf', // WebChat: Chat with anyone on any website
'fcphghnknhkimeagdglkljinmpbagone', // YouTube Auto HD + FPS
'lpomjgbicdemjkgmbnkjncgdebogkhlb', // MultiViewer Companion
'ggiafipgeeaaahnjamgpjcgkdpanhddg', // Sync Watch - Watch videos together on any site
];
const { data, err, isLoading } = useListExtensionDetails(chromeExtensionIds);
+89 -87
View File
@@ -8,6 +8,11 @@ import {
prepareTypedocSidebar,
} from './utils/menus';
import { meta, script } from './utils/head';
import footnote from 'markdown-it-footnote';
import { version as wxtVersion } from '../../packages/wxt/package.json';
import { version as i18nVersion } from '../../packages/i18n/package.json';
import { version as autoIconsVersion } from '../../packages/auto-icons/package.json';
import { version as unocssVersion } from '../../packages/unocss/package.json';
const title = 'Next-gen Web Extension Framework';
const titleSuffix = ' WXT';
@@ -43,6 +48,12 @@ export default defineConfig({
}),
],
markdown: {
config: (md) => {
md.use(footnote);
},
},
themeConfig: {
// https://vitepress.dev/reference/default-theme-config
logo: {
@@ -64,103 +75,94 @@ export default defineConfig({
],
nav: [
navItem('Get Started', '/get-started/introduction'),
navItem('Guide', '/guide/key-concepts/manifest'),
navItem('API', '/api/reference/wxt'),
navItem('Guide', '/guide/installation'),
navItem('Examples', '/examples'),
navItem('API', '/api/reference/wxt'),
navItem(`v${wxtVersion}`, [
navItem('wxt', [
navItem(`v${wxtVersion}`, '/'),
navItem(
`Changelog`,
'https://github.com/wxt-dev/wxt/blob/main/packages/wxt/CHANGELOG.md',
),
]),
navItem('Other Packages', [
navItem(`wxt/storage — ${wxtVersion}`, '/storage'),
navItem(`@wxt-dev/auto-icons — ${autoIconsVersion}`, '/auto-icons'),
navItem(`@wxt-dev/i18n — ${i18nVersion}`, '/i18n'),
navItem(`@wxt-dev/unocss — ${unocssVersion}`, '/unocss'),
]),
]),
],
sidebar: {
'/get-started/': menuRoot([
menuGroup('Get Started', '/get-started/', [
menuItem('Introduction', 'introduction'),
menuItem('Installation', 'installation'),
menuItem('Configuration', 'configuration'),
menuItem('Entrypoints', 'entrypoints'),
menuItem('Assets', 'assets'),
menuItem('Publishing', 'publishing'),
menuItem('Migrate to WXT', 'migrate-to-wxt'),
menuItem('Compare', 'compare'),
]),
]),
'/guide/': menuRoot([
menuGroup('Key Concepts', '/guide/key-concepts/', [
menuItem('Manifest', 'manifest'),
menuItem('Auto-imports', 'auto-imports'),
menuItem('Web Extension Polyfill', 'web-extension-polyfill'),
menuItem('Frontend Frameworks', 'frontend-frameworks'),
menuItem('Content Script UI', 'content-script-ui'),
menuGroup('Get Started', '/guide/', [
menuItem('Introduction', 'introduction.md'),
menuItem('Installation', 'installation.md'),
]),
menuGroup('Directory Structure', '/guide/directory-structure/', [
// Folders
menuItem('.output/', 'output'),
menuItem('.wxt/', 'wxt'),
menuItem('assets/', 'assets'),
menuItem('components/', 'components'),
menuItem('composables/', 'composables'),
menuGroup('entrypoints/', '/guide/directory-structure/entrypoints/', [
menuItem('background', 'background.md'),
menuItem('bookmarks', 'bookmarks.md'),
menuItem('*.content.ts', 'content-scripts.md'),
menuItem('*.css', 'css.md'),
menuItem('devtools', 'devtools.md'),
menuItem('history', 'history.md'),
menuItem('newtab', 'newtab.md'),
menuItem('options', 'options.md'),
menuItem('popup', 'popup.md'),
menuItem('sandbox', 'sandbox.md'),
menuItem('sidepanel', 'sidepanel.md'),
menuItem('*.html', 'unlisted-pages.md'),
menuItem('*.ts', 'unlisted-scripts.md'),
]),
menuItem('hooks/', 'hooks'),
menuItem('public/', 'public/', [
menuItem('_locales/', 'public/locales'),
]),
menuItem('utils/', 'utils'),
// Files
menuItem('.env', 'env'),
menuItem('app.config.ts', 'app-config'),
menuItem('package.json', 'package'),
menuItem('tsconfig.json', 'tsconfig'),
menuItem('web-ext.config.ts', 'web-ext-config'),
menuItem('wxt.config.ts', 'wxt-config'),
menuGroup('Essentials', '/guide/essentials/', [
menuItem('Project Structure', 'project-structure.md'),
menuItem('Entrypoints', 'entrypoints.md'),
menuGroup(
'Configuration',
'/guide/essentials/config/',
[
menuItem('Manifest', 'manifest.md'),
menuItem('Browser Startup', 'browser-startup.md'),
menuItem('Auto-imports', 'auto-imports.md'),
menuItem('Environment Variables', 'environment-variables.md'),
menuItem('Runtime Config', 'runtime.md'),
menuItem('Vite', 'vite.md'),
menuItem('Build Mode', 'build-mode.md'),
menuItem('TypeScript', 'typescript.md'),
menuItem('Hooks', 'hooks.md'),
menuItem('Entrypoint Loaders', 'entrypoint-loaders.md'),
],
true,
),
menuItem('Extension APIs', 'extension-apis.md'),
menuItem('Assets', 'assets.md'),
menuItem('Target Different Browsers', 'target-different-browsers.md'),
menuItem('Content Scripts', 'content-scripts.md'),
menuItem('Storage', 'storage.md'),
menuItem('Messaging', 'messaging.md'),
menuItem('I18n', 'i18n.md'),
menuItem('Scripting', 'scripting.md'),
menuItem('WXT Modules', 'wxt-modules.md'),
menuItem('Frontend Frameworks', 'frontend-frameworks.md'),
menuItem('ES Modules', 'es-modules.md'),
menuItem('Remote Code', 'remote-code.md'),
menuItem('Unit Testing', 'unit-testing.md'),
menuItem('E2E Testing', 'e2e-testing.md'),
menuItem('Publishing', 'publishing.md'),
menuItem('Testing Updates', 'testing-updates.md'),
]),
menuGroup('Extension APIs', '/guide/extension-apis/', [
menuItem('Storage', 'storage'),
menuItem('Messaging', 'messaging'),
menuItem('Scripting', 'scripting'),
menuItem('Others', 'others'),
]),
menuGroup('Go Further', '/guide/go-further/', [
menuItem('Testing', 'testing'),
menuItem('ES Modules', 'es-modules'),
menuItem('Debugging', 'debugging'),
menuItem('Handling Updates', 'handling-updates'),
menuItem('Vite', 'vite'),
menuItem('Custom Events', 'custom-events'),
menuItem('Reusable Modules', 'reusable-modules'),
menuItem('Remote Code', 'remote-code'),
menuItem('Entrypoint Loaders', 'entrypoint-loaders'),
menuItem('How WXT Works', 'how-wxt-works'),
]),
menuGroup('Upgrade Guide', '/guide/upgrade-guide/', [
menuItem('wxt', 'wxt'),
menuGroup('Resources', '/guide/resources/', [
menuItem('Compare', 'compare.md'),
menuItem('FAQ', 'faq.md'),
menuItem('Upgrading WXT', 'upgrading.md'),
menuItem('Migrate to WXT', 'migrate.md'),
menuItem('How WXT Works', 'how-wxt-works.md'),
]),
]),
'/api/': menuRoot([
menuGroup('CLI', '/api/cli/', [
menuItem('wxt', 'wxt.md'),
menuItem('wxt build', 'wxt-build.md'),
menuItem('wxt zip', 'wxt-zip.md'),
menuItem('wxt prepare', 'wxt-prepare.md'),
menuItem('wxt clean', 'wxt-clean.md'),
menuItem('wxt init', 'wxt-init.md'),
menuItem('wxt submit', 'wxt-submit.md'),
menuItem('wxt submit init', 'wxt-submit-init.md'),
]),
menuGroup('API Reference', prepareTypedocSidebar(typedocSidebar)),
menuGroup(
'CLI Reference',
'/api/cli/',
[
menuItem('wxt', 'wxt.md'),
menuItem('wxt build', 'wxt-build.md'),
menuItem('wxt zip', 'wxt-zip.md'),
menuItem('wxt prepare', 'wxt-prepare.md'),
menuItem('wxt clean', 'wxt-clean.md'),
menuItem('wxt init', 'wxt-init.md'),
menuItem('wxt submit', 'wxt-submit.md'),
menuItem('wxt submit init', 'wxt-submit-init.md'),
],
true,
),
menuGroup('API Reference', prepareTypedocSidebar(typedocSidebar), true),
]),
},
},
+4 -3
View File
@@ -1,6 +1,6 @@
import { resolve, join } from 'node:path';
import { resolve } from 'node:path';
import consola from 'consola';
import { execaCommand } from 'execa';
import spawn from 'nano-spawn';
const cliDir = resolve('packages/wxt/src/cli/commands');
const cliDirGlob = resolve(cliDir, '**');
@@ -37,7 +37,8 @@ export default {
};
async function getHelp(command: string): Promise<string> {
const res = await execaCommand(command + ' --help', {
const args = command.split(' ');
const res = await spawn(args[0], [...args.slice(1), '--help'], {
cwd: 'packages/wxt',
});
return res.stdout;
-17
View File
@@ -85,23 +85,6 @@ body {
user-select: none;
}
.VPSidebarItem.level-0.collapsible {
padding-bottom: 0.5rem;
}
.VPSidebarItem.level-0.collapsible .items {
/*border-left: 1px solid var(--vp-c-divider);*/
}
.VPSidebarItem.level-1 {
padding-left: 0.75rem;
}
.VPSidebar .group + .group {
border-top: none;
padding-top: 0;
}
.VPSidebarItem .badge {
display: inline-block;
min-width: 1.6em;
+31 -12
View File
@@ -2,9 +2,20 @@ import { DefaultTheme } from 'vitepress';
type SidebarItem = DefaultTheme.SidebarItem;
type NavItem = DefaultTheme.NavItem;
type NavItemWithLink = DefaultTheme.NavItemWithLink;
type NavItemWithChildren = DefaultTheme.NavItemWithChildren;
type NavItemChildren = DefaultTheme.NavItemChildren;
export function navItem(text: string, link: string): NavItem {
return { text, link };
export function navItem(text: string): NavItemChildren;
export function navItem(text: string, link: string): NavItemChildren;
export function navItem(text: string, items: any[]): NavItemWithChildren;
export function navItem(text: string, arg2?: unknown): any {
if (typeof arg2 === 'string') {
return { text, link: arg2 };
} else if (Array.isArray(arg2)) {
return { text, items: arg2 };
}
return { text };
}
export function menuRoot(items: SidebarItem[]) {
@@ -14,31 +25,39 @@ export function menuRoot(items: SidebarItem[]) {
});
}
export function menuGroup(text: string, items: SidebarItem[]): SidebarItem;
export function menuGroup(
text: string,
items: SidebarItem[],
collapsable?: boolean,
): SidebarItem;
export function menuGroup(
text: string,
base: string,
items: SidebarItem[],
collapsable?: boolean,
): SidebarItem;
export function menuGroup(
text: string,
a: string | SidebarItem[],
b?: SidebarItem[],
b?: SidebarItem[] | boolean,
c?: boolean,
): SidebarItem {
const collapsed = true;
if (typeof a === 'string') {
if (typeof a === 'string' && Array.isArray(b)) {
return {
text,
base: a,
items: b,
collapsed,
collapsed: c,
};
}
return {
text,
items: a,
collapsed,
};
if (typeof a !== 'string' && !Array.isArray(b))
return {
text,
items: a,
collapsed: b,
};
throw Error('Unknown overload');
}
export function menuItems(items: SidebarItem[]) {
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+1
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@@ -0,0 +1 @@
<!--@include: ../packages/auto-icons/README.md-->
-33
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@@ -1,33 +0,0 @@
# Assets
WXT has two directories for storing assets like CSS, images, or fonts.
- [public directory](/guide/directory-structure/public/): Store files that will be copied into the output directory as-is
- [assets directory](/guide/directory-structure/assets): Store files that will be processed by Vite during the build process
To learn more about how to use assets at runtime from either of these directories, visit their guides linked above.
## Public Directory
Place static files like the extension icon or `_locales/` directory here. These files will be copied over to the output directory without being transformed by Vite.
```
<srcDir>
└─ public/
├─ icon-16.png
├─ icon-32.png
├─ icon-48.png
├─ icon-96.png
└─ icon-128.png
```
## Assets Directory
Files in the assets directory will be processed by Vite. They are imported in your source code, and will be transformed or renamed in the output directory.
```
<srcDir>
└─ assets/
├─ tailwind.css
└─ illustration.svg
```
-47
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@@ -1,47 +0,0 @@
# Compare
Lets compare the features of WXT vs [Plasmo](https://docs.plasmo.com/framework) (another framework) and [CRXJS](https://crxjs.dev/vite-plugin) (a bundler plugin).
## Overview
| Features | WXT | Plasmo | CRXJS |
| ---------------------------------------------------- | :--------------: | :-------------: | :--------------: |
| Supports all browsers | ✅ | ✅ | 🟡 <sup>10</sup> |
| MV2 Support | ✅ | ✅ | 🟡 <sup>1</sup> |
| MV3 Support | ✅ | ✅ | 🟡 <sup>1</sup> |
| Create Extension ZIPs | ✅ | ✅ | ❌ |
| Create Firefox Sources ZIP | ✅ | ❌ | ❌ |
| First-class TypeScript support | ✅ | ✅ | ✅ |
| Entrypoint discovery | ✅ <sup>2</sup> | ✅ <sup>2</sup> | ❌ |
| Inline entrypoint config | ✅ | ✅ | ❌ <sup>9</sup> |
| Auto-imports | ✅ | ❌ | ❌ |
| Supports all frontend frameworks | ✅ | 🟡 <sup>3</sup> | ✅ |
| Framework specific entrypoints (like `Popup.tsx`) | 🟡 <sup>4</sup> | ✅ <sup>5</sup> | ❌ |
| Automated publishing | ✅ | ✅ | ❌ |
| Remote Code Bundling (Google Analytics) | ✅ | ✅ | ❌ |
| <strong style="opacity: 50%">Dev Mode</strong> | | |
| `.env` Files | ✅ | ✅ | ✅ |
| Opens browser with extension installed | ✅ | ❌ | ❌ |
| HMR for UIs | ✅ | 🟡 <sup>6</sup> | ✅ |
| Reload HTML Files on Change | ✅ | 🟡 <sup>7</sup> | ✅ |
| Reload Content Scripts on Change | ✅ | 🟡 <sup>7</sup> | ✅ |
| Reload Background on Change | 🟡 <sup>7</sup> | 🟡 <sup>7</sup> | 🟡 <sup>7</sup> |
| Respects Content Script `run_at` | ✅ | ✅ | ❌ <sup>8</sup> |
| <strong style="opacity: 50%">Built-in Utils</strong> | | | |
| Storage | ✅ | ✅ | ❌ <sup>11</sup> |
| Messaging | ❌ <sup>11</sup> | ✅ | ❌ <sup>11</sup> |
| Content Script UI | ✅ | ✅ | ❌ <sup>11</sup> |
<small>
<sup>1</sup>: Either MV2 or MV3, not both.
<br/><sup>2</sup>: File based.
<br/><sup>3</sup>: Only React, Vue, and Svelte.
<br/><sup>4</sup>: <code>.html</code> <code>.ts</code> <code>.tsx</code>.
<br/><sup>5</sup>: <code>.html</code> <code>.ts</code> <code>.tsx</code>. <code>.vue</code> <code>.svelte</code>.
<br/><sup>6</sup>: React only.
<br/><sup>7</sup>: Reloads entire extension.
<br/><sup>8</sup>: ESM-style loaders run asynchronously.
<br/><sup>9</sup>: Entrypoint options all configured in `manifest.json`.
<br/><sup>10</sup>: As of <code>v2.0.0-beta.23</code>, but v2 stable hasn't been released yet.
<br/><sup>11</sup>: There is no built-in wrapper around this API. However, you can still access the standard APIs via <code>chrome</code>/<code>browser</code> globals or use any 3rd party NPM package.
</small>
-57
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@@ -1,57 +0,0 @@
# Configuration
By default, WXT provides sensible configuration for bundling web extensions with Vite.
## Config File
To configure WXT, create a `wxt.config.ts` file in your project root. It should have the following contents:
```ts
import { defineConfig } from 'wxt';
export default defineConfig({
// My WXT config
});
```
:::info
For more information on configuring WXT via the `wxt.config.ts` file, read the dedicated [`wxt.config.ts` guide](/guide/directory-structure/wxt-config).
:::
## Manifest.json
WXT generates your extension's `manifest.json` based on the project structure. To add additional properties, like permissions, use the [`manifest` property](/api/reference/wxt/interfaces/InlineConfig#manifest).
```ts
import { defineConfig } from 'wxt';
export default defineConfig({
manifest: {
permissions: ['storage'],
},
});
```
:::info
For more information on configuring the manifest, read the dedicated [Manifest guide](/guide/key-concepts/manifest).
:::
## Environment
WXT can read `.env` files, and variables are accessible via `import.meta.env.*`.
:::code-group
```sh [.env]
VITE_OAUTH_CLIENT_ID=abc123
```
```ts [JS]
import.meta.env.VITE_OAUTH_CLIENT_ID;
```
:::
:::info
For more information on using .env files, read the dedicated [`.env` guide](/guide/directory-structure/env).
:::
-60
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@@ -1,60 +0,0 @@
# Entrypoints
An "entrypoint" is any HTML, JS, or CSS file that needs to be bundled and included with your extension, which will be loaded and executed by the browser.
## Defining Entrypoints
In WXT, you create an entrypoint by adding a file to the `entrypoints/` directory.
```
<rootDir>
└─ entrypoints/
├─ background.ts
├─ content.ts
├─ injected.ts
└─ popup.html
```
Some entrypoint filesname patterns are reserved by WXT and effect how the manifest is generated.
- `popup` adds an `action` to the manifest
- `background` adds a background script/service worker
- `*.content.ts` adds a content script
- ...
> For a full list of recognized filenames, see the the [Entrypoints Directory guide](/guide/directory-structure/entrypoints/background).
Any other files, whether JS, CSS, or HTML, is considered "unlisted". Unlisted files, like `injected.ts` from above, are just bundled to the output directory and not added to the manifest. You can still access or load them at runtime.
## Entrypoint Options
Most entrypoints allow customizing their options in the file you define them in. This differs from regular web extension development, where all options are placed in the `manifest.json`.
WXT looks for custom options in the entrypoint, and adds them to the manifest when generated.
In HTML files, options are listed as `meta` tags:
```html
<html>
<head>
<!-- Defining the popup's "default_icon" field -->
<meta name="manifest.default_icon" content="{ '16': '/icon/16.png' }" />
</head>
</html>
```
In TS files, options are apart of the file's default export:
```ts
export default defineContentScript({
matches: ['*://*.google.com/*'],
runAt: 'document_start',
main() {
// ...
},
});
```
:::info
All options for each entrypoint type is listed in the [entrypoints directory docs](/guide/directory-structure/entrypoints/background).
:::
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@@ -1,116 +0,0 @@
# Installation
Bootstrap a new project, start from scratch, or [migrate an existing project](/get-started/migrate-to-wxt).
## Bootstrap Project
:::code-group
```sh [pnpm]
pnpm dlx wxt@latest init <project-name>
```
```sh [npm]
npx wxt@latest init <project-name>
```
```sh [bun]
# The "wxt init" command currently fails when ran with bunx.
# Use NPX as a workaround, and select "bun" as your package
# manager. To stay up to date with this issue, follow
# https://github.com/wxt-dev/wxt/issues/707
#
# bunx wxt@latest init <project-name>
npx wxt@latest init <project-name>
```
:::
There are several starting templates available.
| TypeScript |
| ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <Icon name="TypeScript" /> [`vanilla`](https://github.com/wxt-dev/wxt/tree/main/templates/vanilla) |
| <Icon name="Vue" /> [`vue`](https://github.com/wxt-dev/wxt/tree/main/templates/vue) |
| <Icon name="React" /> [`react`](https://github.com/wxt-dev/wxt/tree/main/templates/react) |
| <Icon name="Svelte" /> [`svelte`](https://github.com/wxt-dev/wxt/tree/main/templates/svelte) |
| <Icon name="Solid" icon="https://www.solidjs.com/img/favicons/favicon-32x32.png" /> [`solid`](https://github.com/wxt-dev/wxt/tree/main/templates/solid) |
:::info
All templates default to TypeScript. Rename the file extensions to `.js` to use JavaScript instead.
:::
## From Scratch
Initialize a project and install `wxt`:
:::code-group
```sh [pnpm]
pnpm init
pnpm add -D wxt
```
```sh [npm]
npm init
npm i --save-dev wxt
```
```sh [yarn]
yarn init
yarn add --dev wxt
```
```sh [bun]
bun init
bun add --dev wxt
```
:::
Add your first entrypoint:
```ts
// entrypoints/background.ts
export default defineBackground(() => {
console.log(`Hello from ${browser.runtime.id}!`);
});
```
And add scripts to your `package.json`:
```json
{
"scripts": {
"dev": "wxt", // [!code ++]
"dev:firefox": "wxt --browser firefox", // [!code ++]
"build": "wxt build", // [!code ++]
"build:firefox": "wxt build --browser firefox", // [!code ++]
"zip": "wxt zip", // [!code ++]
"zip:firefox": "wxt zip --browser firefox", // [!code ++]
"postinstall": "wxt prepare" // [!code ++]
}
}
```
## Development
Once the project is setup, you can start the development server using the `dev` script.
```sh
pnpm dev
```
:::tip 🎉&ensp;Well done!
The dev command will build the extension for development, open the browser, and reload the different parts of the extension when you save changes.
:::
## Next Steps
You're ready to build your web extension!
- Read the rest of the "Get Started" pages for a high-overview of what WXT can do
- Read the [Guide](/guide/key-concepts/manifest) to learn in-depth about each feature WXT supports
- [Configure WXT](./configuration) by creating a `wxt.config.ts` file
- Checkout [example projects](https://github.com/wxt-dev/examples) to see how to perform common tasks with WXT
-47
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@@ -1,47 +0,0 @@
---
head:
- - link
- rel: canonical
href: https://wxt.dev
---
# Introduction
## Overview
WXT is a free and open source framework for building web extensions in an conventional, intuitive, and safe way **_for all browsers_**.
WXT is based on [Nuxt](https://nuxt.com), and aims to provide the same great DX with TypeScript, auto-imports, and an opinionated project structure.
![Example build output](../assets/cli-output.png)
## Conventions
WXT is an opinionated framework. This helps keep projects consistent and easy to pick up.
- **Generated manifest**: Based on your project's file structure
- **Entrypoint configuration**: Configure entrypoints from the same file they're declare in
- **Type-safety is a priority**: Out-of-the-box TypeScript support with improved browser API typing
- **Simple output file structure**: Output file paths minimize the path at runtime
## Development
WXT's dev server supports modern features like HMR to provide a lighting fast dev mode.
When changes can't be hot-reloaded, like content scripts or background scripts, they're reloaded individually to prevent reloading the entire extension and slowing down your development cycle.
## Production-ready
Production builds are optimized for store review, changing as few files as possible between builds.
In addition, WXT fully supports Firefox's source code requirements when using a bundler. It will automatically create and upload a ZIP file of your source code.
:::info
See [Publishing](./publishing) for more info around production builds.
:::
## New to Extension Development?
Most of these docs assume you have a basic understanding of how to write a chrome or web extension.
If you've never written a web extension before or need a refresher, follow Google's ["Hello, World!" tutorial](https://developer.chrome.com/docs/extensions/get-started/tutorial/hello-world) to understand the basics.
@@ -1,61 +0,0 @@
# `<srcDir>/app.config.ts`
:::warning Nuxt Users
If you're familiar with Nuxt, this file is meant to be a direct equivalent to Nuxt's `app.config.ts` file.
However, some of Nuxt's features, like overriding the app config based on a `.env` file or automatically generating the config's types, are not implemented. They are planned, just not implemented yet. Feel free to open a PR!
:::
## Overview
Define runtime configuration in a single place.
```ts
// <srcDir>/app.config.ts
import { defineAppConfig } from 'wxt/sandbox';
// Define types for your config
declare module 'wxt/sandbox' {
export interface WxtAppConfig {
theme?: 'light' | 'dark';
}
}
export default defineAppConfig({
theme: 'dark',
});
```
Then access the config in your extension by calling `useAppConfig`:
```ts
console.log(useAppConfig()); // { theme: "dark" }
```
## Environment Variables
If you have a `.env` file, you can access any variables defined in it here. You can convert them to better types (like booleans), add types for them, or leave them as is.
```txt
# .env
VITE_BUG_REPORTING_DISABLED=true
VITE_API_KEY=...
```
```ts
// <srcDir>/app.config.ts
declare module 'wxt/sandbox' {
export interface WxtAppConfig {
bugReportingDisabled: boolean;
apiKey?: string;
}
}
export default defineAppConfig({
bugReportingDisabled: import.meta.env.VITE_BUG_REPORTING_DISABLED === 'true',
apiKey: import.meta.env.VITE_API_KEY,
});
```
> You don't have to do this, you can use `import.meta.env.VITE_*` anywhere in your runtime code, but putting them here consolidates them to one place and defines what variables are expected.
-42
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@@ -1,42 +0,0 @@
# `<srcDir>/assets`
Files in the assets directory will be processed by Vite. They are imported in your source code, and will be transformed or renamed in the output directory.
```
<srcDir>
└─ assets/
├─ style.css
└─ illustration.svg
```
### Example
:::code-group
```html [popup.html]
<html>
<head>
<link rel="stylesheet" href="~/assets/style.css" />
<!-- ... -->
</head>
<body>
<img src="~/assets/illustration.svg" />
<!-- ... -->
</body>
</html>
```
```ts [content.ts]
import '~/assets/style.css';
import illustration from '~/assets/style.svg';
defineContentScript({
main() {
const image = document.createElement('img');
image.src = illustration;
document.body.append(image);
},
});
```
:::
@@ -1,5 +0,0 @@
# `<srcDir>/components`
:::warning 🚧 Under construction
These docs will be coming soon!
:::
@@ -1,5 +0,0 @@
# `<srcDir>/composables`
:::warning 🚧 Under construction
These docs will be coming soon!
:::
@@ -1,47 +0,0 @@
# Background
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/manifest/background/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/background)
For MV2, the background is added as a script to the background page. For MV3, the background becomes a service worker.
## Filenames
<EntrypointPatterns
:patterns="[
['background.[jt]s', 'background.js'],
['background/index.[jt]s', 'background.js'],
]"
/>
## Definition
:::warning
The main function of the background **_CANNOT BE ASYNC_**. Event listeners must be added synchronously on background startup. If your main function returns a promise, WXT will log an error.
:::
```ts
export default defineBackground(() => {
// Executed when background is loaded
});
```
or
```ts
export default defineBackground({
// Set manifest options
persistent: undefined | true | false,
type: undefined | 'module',
// Set include/exclude if the background should be removed from some builds
include: undefined | string[],
exclude: undefined | string[],
// Executed when background is loaded
main() {
// ...
},
});
```
> All manifest options default to `undefined`.
@@ -1,31 +0,0 @@
# Bookmarks
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/override/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/chrome_url_overrides)
## Filenames
<EntrypointPatterns
:patterns="[
['bookmarks.html', 'bookmarks.html'],
['bookmarks/index.html', 'bookmarks.html'],
]"
/>
## Definition
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Title</title>
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
@@ -1,107 +0,0 @@
# Content Scripts
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/content_scripts/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Content_scripts)
When creating content script entrypoints, they are automatically included in the `manifest.json` along with any CSS files they import.
## Filenames
<EntrypointPatterns
:patterns="[
['content.[jt]sx?', 'content-scripts/content.js'],
['content/index.[jt]sx?', 'content-scripts/content.js'],
['<name>.content.[jt]sx?', 'content-scripts/<name>.js'],
['<name>.content/index.[jt]sx?', 'content-scripts/<name>.js'],
]"
/>
## Definition
```ts
export default defineContentScript({
// Set manifest options
matches: string[],
excludeMatches: undefined | [],
includeGlobs: undefined | [],
excludeGlobs: undefined | [],
allFrames: undefined | [],
runAt: undefined | 'document_start' | 'document_end' | 'document_idle',
matchAboutBlank: undefined | true | false,
matchOriginAsFallback: undefined | true | false,
world: undefined | 'ISOLATED' | 'MAIN',
// Set include/exclude if the background should be removed from some builds
include: undefined | string[],
exclude: undefined | string[],
// Configure how CSS is injected onto the page
cssInjectionMode: undefined | "manifest" | "manual" | "ui",
// Configure how/when content script will be registered
registration: undefined | "manifest" | "runtime",
main(ctx: ContentScriptContext) {
// Executed when content script is loaded
},
});
```
> All manifest options default to `undefined`.
When defining multiple content scripts, content script entrypoints that have the same set of options will be merged into a single `content_script` item in the manifest.
## CSS
To include CSS with your content script, import the CSS file at the top of your entrypoint.
```
<srcDir>/
└─ entrypoints/
└─ overlay.content/
├─ index.ts
└─ style.css
```
```ts
// entrypoints/overlay.content/index.ts
import './style.css';
export default defineContentScript({
matches: ['*://google.com/*', '*://duckduckgo.com/*'],
main(ctx) {
// ...
},
});
```
Any styles imported in your content script will be added to that content script's `css` array in your `manifest.json`:
```json
// .output/chrome-mv3/manifest.json
{
"content_scripts": [
{
"matches": ["*://google.com/*", "*://duckduckgo.com/*"],
"js": ["content-scripts/overlay.js"],
"css": ["content-scripts/overlay.css"]
}
]
}
```
To disable this behavior, set `cssInjectionMode` to `"manual"` or `"ui"`.
```ts
export default defineContentScript({
matches: ['*://google.com/*', '*://duckduckgo.com/*'],
cssInjectionMode: 'manual',
main(ctx) {
// ...
},
});
```
See [Content Script UI](/guide/key-concepts/content-script-ui) for more info on creating UIs and including CSS in content scripts.
@@ -1,44 +0,0 @@
# CSS
WXT can build CSS entrypoints individually. CSS entrypoints are always unlisted.
See [Content Script CSS](/guide/directory-structure/entrypoints/content-scripts#css) documentation for the recommended approach to include CSS with a content script.
:::info
If the recommended approach doesn't work for your use case, you can use any of the filename patterns below to build the styles separate from the JS and use the [`transformManifest` hook](/api/reference/wxt/interfaces/InlineConfig#transformmanifest) to manually add your CSS file to the manifest.
:::
## Filenames
<EntrypointPatterns
:patterns="[
['<name>.(css|scss|sass|less|styl|stylus)', '<name>.css'],
['<name>/index.(css|scss|sass|less|styl|stylus)', '<name>.css'],
['content.(css|scss|sass|less|styl|stylus)', 'content-scripts/content.css'],
['content/index.(css|scss|sass|less|styl|stylus)', 'content-scripts/content.css'],
['<name>.content.(css|scss|sass|less|styl|stylus)', 'content-scripts/<name>.css'],
['<name>.content/index.(css|scss|sass|less|styl|stylus)', 'content-scripts/<name>.css'],
]"
/>
## Definition
```css
body {
/* Plain CSS file */
}
```
Follow Vite's guide to setup a preprocessor: https://vitejs.dev/guide/features.html#css-pre-processors
```sh
pnpm i sass
```
```scss
body {
h1 {
/* ...*/
}
}
```
@@ -1,40 +0,0 @@
# Devtools
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/devtools/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/devtools_page)
## Filenames
<EntrypointPatterns
:patterns="[
['devtools.html', 'devtools.html'],
['devtools/index.html', 'devtools.html'],
]"
/>
## Definition
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
## Adding UI Elements
Chrome extensions allow you to add panels and side panes to the devtools window.
![DevTools window showing Elements panel and Styles sidebar pane.](https://developer.chrome.com/static/docs/extensions/how-to/devtools/extend-devtools/image/devtools-window-showing-e-9051f7f0347cd_1920.png)
See the WXT's examples for a full walkthrough of extending the devtools window:
- [Devtools Setup](https://github.com/wxt-dev/wxt-examples/tree/main/examples/vanilla-devtools#readme)
@@ -1,31 +0,0 @@
# History
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/override/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/chrome_url_overrides)
## Filenames
<EntrypointPatterns
:patterns="[
['history.html', 'history.html'],
['history/index.html', 'history.html'],
]"
/>
## Definition
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Title</title>
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
@@ -1,31 +0,0 @@
# Newtab
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/override/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/chrome_url_overrides)
## Filenames
<EntrypointPatterns
:patterns="[
['newtab.html', 'newtab.html'],
['newtab/index.html', 'newtab.html'],
]"
/>
## Definition
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Title</title>
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
@@ -1,36 +0,0 @@
# Options
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/options/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/options_ui)
## Filenames
<EntrypointPatterns
:patterns="[
['options.html', 'options.html'],
['options/index.html', 'options.html'],
]"
/>
## Definition
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Options Title</title>
<meta name="manifest.open_in_tab" content="true|false" />
<meta name="manifest.chrome_style" content="true|false" />
<meta name="manifest.browser_style" content="true|false" />
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
> All manifest options default to `undefined` when the `meta` tag is not present.
@@ -1,43 +0,0 @@
# Popup
[Chrome Docs](https://developer.chrome.com/docs/extensions/reference/action/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/action)
## Filenames
<EntrypointPatterns
:patterns="[
['popup.html', 'popup.html'],
['popup/index.html', 'popup.html'],
]"
/>
## Definition
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Default Popup Title</title>
<meta
name="manifest.default_icon"
content="{
16: '/icon-16.png',
24: '/icon-24.png',
...
}"
/>
<meta name="manifest.type" content="page_action|browser_action" />
<meta name="manifest.browser_style" content="true|false" />
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
> All manifest options default to `undefined` when the `meta` tag is not present.
@@ -1,37 +0,0 @@
# Sandbox
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/manifest/sandbox/)
:::tip Chromium Only
Firefox does not support sandboxed pages.
:::
## Filenames
<EntrypointPatterns
:patterns="[
['sandbox.html', 'sandbox.html'],
['sandbox/index.html', 'sandbox.html'],
['<name>.sandbox.html', '<name>.html'],
['<name>.sandbox/index.html', '<name>.html'],
]"
/>
## Definition
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Title</title>
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
@@ -1,49 +0,0 @@
# Side Panel
[Chrome Docs](https://developer.chrome.com/docs/extensions/reference/sidePanel/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Sidebars)
In Chrome, side panels use the "side_panel" API, while Firefox uses the "sidebar_action" API.
:::warning
Chrome added support for sidepanels in Manifest V3, they are not available in Manifest V2.
:::
## Filenames
<EntrypointPatterns
:patterns="[
['sidepanel.html', 'sidepanel.html'],
['sidepanel/index.html', 'sidepanel.html'],
['<name>.sidepanel.html', '<name>.html` '],
['<name>.sidepanel/index.html', '<name>.html` '],
]"
/>
## Definition
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Default Side Panel Title</title>
<meta
name="manifest.default_icon"
content="{
16: '/icon-16.png',
24: '/icon-24.png',
...
}"
/>
<meta name="manifest.open_at_install" content="true|false" />
<meta name="manifest.browser_style" content="true|false" />
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
@@ -1,49 +0,0 @@
# Unlisted Pages
HTML pages that are bundled and shipped with the extension, but are not included in the manifest.
If you plan on using the page in an iframe, don't forget to add the page to [`web_accessible_resources`](https://developer.chrome.com/docs/extensions/reference/manifest/web-accessible-resources).
### Examples
- Onboarding
- Dashboard
- FAQ
- Help
- Changelog
## Filenames
<EntrypointPatterns
:patterns="[
['<name>.html', '<name>.html'],
['<name>/index.html', '<name>.html'],
]"
/>
Pages are accessible at `'/<name>.html'`:
```ts
const url = browser.runtime.getURL('/<name>.html', '<html></html>');
console.log(url); // "chrome-extension://<id>/<name>.html"
```
## Definition
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Title</title>
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
@@ -1,37 +0,0 @@
# Unlisted Scripts
TypeScript files that are bundled and shipped with the extension, but are not included in the manifest.
You are responsible for loading/running these scripts where needed. If necessary, don't forget to add the script and/or any related stylesheets to [`web_accessible_resources`](https://developer.chrome.com/docs/extensions/reference/manifest/web-accessible-resources).
## Filenames
<EntrypointPatterns
:patterns="[
['<name>.[jt]sx?', '<name>.js'],
['<name>/index.[jt]sx?', '<name>.js'],
]"
/>
## Definition
```ts
export default defineUnlistedScript(() => {
// Executed when script is loaded
});
```
or
```ts
export default defineUnlistedScript({
// Set include/exclude if the script should be removed from some builds
include: undefined | string[],
exclude: undefined | string[],
// Executed when script is loaded
main() {
// ...
},
});
```
-5
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# `<root>/.env`
:::warning 🚧 Under construction
These docs will be coming soon!
:::
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# `<srcDir>/hooks`
:::warning 🚧 Under construction
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:::
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# `<root>/.output`
:::warning 🚧 Under construction
These docs will be coming soon!
:::
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# `<root>/package.json`
:::warning 🚧 Under construction
These docs will be coming soon!
:::
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# `public/`
Place static files like the extension icon or `_locales/` directory here. These files will be copied over to the output directory without being transformed by Vite.
```
<srcDir>
└─ public/
├─ icon-16.png
├─ icon-32.png
├─ icon-48.png
├─ icon-96.png
└─ icon-128.png
```
### Example
You can reference these files by using absolute paths in HTML files or `browser.runtime.getURL` in content scripts.
:::code-group
```html [popup.html]
<img src="/icon-128.png" />
```
```ts [content.ts]
defineContentScript({
main() {
const image = document.createElement('img');
image.src = browser.runtime.getURL('/icon-128.png');
document.body.append(image);
},
});
```
:::
@@ -1,5 +0,0 @@
# `public/_locales/`
:::warning 🚧 Under construction
These docs will be coming soon!
:::
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# `<root>/tsconfig.json`
:::warning 🚧 Under construction
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:::
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# `<srcDir>/utils`
:::warning 🚧 Under construction
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:::
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# `web-ext.config.ts`
This file lets you configure the browser startup when running `wxt dev`.
```ts
import { defineRunnerConfig } from 'wxt';
export default defineRunnerConfig({
startUrls: ['https://google.com', 'https://youtube.com'],
});
```
There are three places you can customize the runner:
- `<root>/wxt.config.ts` - Use the `runner` option. Changes here will be committed and shared with everyone developing the project.
- `<root>/web-ext.config.ts` - A gitignored file for you to customize the startup behavior to your liking without effecting others
- `$HOME/web-ext.config.ts` - Stores system-wide config effecting all projects running on your machine.
See below examples on how to accomplish common configuration:
[[toc]]
## Configuring Binaries
`web-ext`'s browser discovery is very limited. By default, it only guesses at where Chrome and Firefox are installed. If you've customized your install locations, you may need to tell `web-ext` where the binaries/executables are located using the [`binaries` option](/api/reference/wxt/interfaces/ExtensionRunnerConfig#binaries). For other Chromium based browsers, like Edge or Opera, you'll need to explicitly list them in the `binaries` option as well, otherwise they will open in Chrome by default.
```ts
import { defineRunnerConfig } from 'wxt';
export default defineRunnerConfig({
binaries: {
chrome: '/path/to/chrome-beta', // Use Chrome Beta instead of regular Chrome
firefox: 'firefoxdeveloperedition', // Use Firefox Developer Edition instead of regular Firefox
edge: '/path/to/edge', // Open MS Edge when running "wxt -b edge"
},
});
```
## Disable Opening Browser
Disabling the browser can be useful if it's difficult to develop your extension with fresh profiles. Maybe you need to sign into a website to see a content script run, and a fresh profile isn't helpful because it doesn't save your login info.
To disable opening the extension automatically in a new window, just disable the runner:
```ts
export default defineRunnerConfig({
disabled: true,
});
```
## Profile Customization
Another option, instead of disabling the runner, to stay logged into websites is to use a custom profile.
`web-ext` comes with some built-in ways of using an existing profile, but it's not really using the same profile. It copies the profile to a temp directory, and uses that.
Instead, I've found it's better to pass Chrome's `--user-data-dir` argument. This let's you use a fresh profile initially, and customize it to your liking. You can install devtool extensions, set custom flags, and log into websites. Next time you run the extension in dev mode, all that will be remembered!
```ts
export default defineRunnerConfig({
chromiumArgs: ['--user-data-dir=./chrome-data'],
});
```
> This only works for Chrome. You'll have to use `firefoxProfile` option instead, which has the same limitations mentioned above, where you won't be signed into websites automatically.
@@ -1,5 +0,0 @@
# `<root>/wxt.config.ts`
:::warning 🚧 Under construction
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:::
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# `.wxt/`
:::warning 🚧 Under construction
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# Assets
## `/assets` Directory
Any assets imported or referenced inside the `<srcDir>/assets/` directory will be processed by WXT's bundler.
Here's how you access them:
:::code-group
```ts [JS]
import imageUrl from '~/assets/image.png';
const img = document.createElement('img');
img.src = imageUrl;
```
```html [HTML]
<img src="~/assets/image.png" />
```
```css [CSS]
.bg-image {
background-image: url(~/assets/image.png);
}
```
:::
## `/public` Directory
Files inside `<srcDir>/public/` are copied into the output folder as-is, without being processed by WXT's bundler.
Here's how you access them:
:::code-group
```ts [JS]
import imageUrl from '/image.png';
const img = document.createElement('img');
img.src = imageUrl;
```
```html [HTML]
<img src="/image.png" />
```
```css [CSS]
.bg-image {
background-image: url(/image.png);
}
```
:::
## Inside Content Scripts
Assets inside content scripts are a little different. By default, when you import an asset, it returns just the path to the asset. This is because Vite assumes you're loading assets from the same hostname.
But, inside content scripts, the hostname is whatever the tab is set to. So if you try to fetch the asset, manually or as an `<img>`'s `src`, it will be loaded from the tab's website, not your extension.
To fix this, you need to convert the image to a full URL using `browser.runtime.getURL`:
```ts
// entrypoints/content.ts
import iconUrl from '/icon/128.png';
export default defineContentScript({
matches: ['*://*.google.com/*'],
main() {
console.log(iconUrl); // "/icon/128.png"
console.log(browser.runtime.getURL(iconUrl)); // "chrome-extension://<id>/icon/128.png"
},
});
```
## WASM
:::warning 🚧 Under construction
These docs will be coming soon!
:::
@@ -0,0 +1,112 @@
# Auto-imports
WXT uses [`unimport`](https://www.npmjs.com/package/unimport), the same tool as Nuxt, to setup auto-imports.
```ts
export default defineConfig({
// See https://www.npmjs.com/package/unimport#configurations
imports: {
// ...
},
});
```
By default, WXT automatically setups up auto-imports for all of it's own APIs:
- [`browser`](/api/reference/wxt/browser/variables/browser) from `wxt/browser`
- [`defineContentScript`](/api/reference/wxt/sandbox/functions/defineContentScript) from `wxt/sandbox`
- [`defineBackground`](/api/reference/wxt/sandbox/functions/defineBackground) from `wxt/sandbox`
- [`defineUnlistedScript`](/api/reference/wxt/sandbox/functions/defineUnlistedScript) from `wxt/sandbox`
- [`createIntegratedUi`](/api/reference/wxt/client/functions/createIntegratedUi) from `wxt/client`
- [`createShadowRootUi`](/api/reference/wxt/client/functions/createShadowRootUi) from `wxt/client`
- [`createIframeUi`](/api/reference/wxt/client/functions/createIframeUi) from `wxt/client`
- [`fakeBrowser`](/api/reference/wxt/testing/variables/fakeBrowser) from `wxt/testing`
- And more!
WXT also adds some project directories as auto-import sources automatically:
- `<srcDir>/components/*`
- `<srcDir>/composables/*`
- `<srcDir>/hooks/*`
- `<srcDir>/utils/*`
All named and default exports from files in these directories are available everywhere else in your project without having to import them.
## TypeScript
For TypeScript and your editor to recognize auto-imported variables, you need to run the [`wxt prepare` command](/api/cli/wxt-prepare).
Add this command to your `postinstall` script so your editor has everything it needs to report type errors after installing dependencies:
```jsonc
// package.json
{
"scripts": {
"postinstall": "wxt prepare", // [!code ++]
},
}
```
## ESLint
ESLint doesn't know about the auto-imported variables unless they are explicitly defined in the ESLint's `globals`. By default, WXT will generate the config if it detects ESLint is installed in your project. If the config isn't generated automatically, you can manually tell WXT to generate it.
:::code-group
```ts [ESLint 9]
export default defineConfig({
imports: {
eslintrc: {
enabled: 9,
},
},
});
```
```ts [ESLint 8]
export default defineConfig({
imports: {
eslintrc: {
enabled: 8,
},
},
});
```
:::
Then in your ESLint config, import and use the generated file:
:::code-group
```js [ESLint 9]
// eslint.config.mjs
import autoImports from './.wxt/eslint-auto-imports.mjs';
export default [
autoImports,
{
// The rest of your config...
},
];
```
```js [ESLint 8]
// .eslintrc.mjs
export default {
extends: ['./.wxt/eslintrc-auto-import.json'],
// The rest of your config...
};
```
:::
## Disabling Auto-imports
Not all developers like auto-imports. To disable them, set `imports` to `false`.
```ts
export default defineConfig({
imports: false, // [!code ++]
});
```
@@ -0,0 +1,85 @@
---
outline: deep
---
# Browser Startup
> See the [API Reference](/api/reference/wxt/interfaces/ExtensionRunnerConfig) for a full list of config.
During development WXT uses [`web-ext` by Mozilla](https://www.npmjs.com/package/web-ext) to automatically open a browser window with your extension installed.
## Config Files
You can configure browser startup in 3 places:
1. `<rootDir>/web-ext.config.ts`: Ignored from version control, this file lets you configure your own options for a specific project without affecting other developers
```ts
import { defineRunnerConfig } from 'wxt';
export default defineRunnerConfig({
// ...
});
```
2. `<rootDir>/wxt.config.ts`: Via the [`runner` config](/api/reference/wxt/interfaces/InlineConfig#runner), included in version control
3. `$HOME/web-ext.config.ts`: Provide default values for all WXT projects on your computer
## Recipes
### Set Browser Binaries
To set or customize the browser opened during development:
```ts
export default defineRunnerConfig({
binaries: {
chrome: '/path/to/chrome-beta', // Use Chrome Beta instead of regular Chrome
firefox: 'firefoxdeveloperedition', // Use Firefox Developer Edition instead of regular Firefox
edge: '/path/to/edge', // Open MS Edge when running "wxt -b edge"
},
});
```
### Persist Data
By default, to keep from modifying your browser's existing profiles, `web-ext` creates a brand new profile every time you run the `dev` script.
Right now, Chromium based browsers are the only browsers that support overriding this behavior and persisting data when running the `dev` script multiple times.
To persist data, set the `--user-data-dir` flag:
:::code-group
```ts [Mac/Linux]
export default defineRunnerConfig({
chromiumArgs: ['--user-data-dir=./.wxt/chrome-data'],
});
```
```ts [Windows]
import { resolve } from 'node:path';
export default defineRunnerConfig({
// On Windows, the path must be absolute
chromiumArgs: [`--user-data-dir="${resolve(".wxt/chrome-data")}"`
});
```
:::
Now, next time you run the `dev` script, a persistent profile will be created in `.wxt/chrome-data/{profile-name}`. With a persistent profile, you can install devtools extensions to help with development, allow the browser to remember logins, etc, without worrying about the profile being reset the next time you run the `dev` script.
:::tip
You can use any directory you'd like for `--user-data-dir`, the examples above create a persistent profile for each WXT project. To create a profile for all WXT projects, you can put the `chrome-data` directory inside you're user's home directory.
:::
### Disable Opening Browser
If you prefer to load the extension into your browser manually, you can disable the auto-open behavior:
```ts
export default defineRunnerConfig({
disabled: true,
});
```
@@ -0,0 +1,29 @@
# Build Modes
Because WXT is powered by Vite, it supports [modes](https://vite.dev/guide/env-and-mode.html#modes) in the same way.
When running any dev or build commands, pass the `--mode` flag:
```sh
wxt --mode production
wxt build --mode development
wxt zip --mode testing
```
By default, `--mode` is `development` for the dev command and `production` for all other commands (build, zip, etc).
## Get Mode at Runtime
You can access the current mode in your extension using `import.meta.env.MODE`:
```ts
switch (import.meta.env.MODE) {
case 'development': // ...
case 'production': // ...
// Custom modes specified with --mode
case 'testing': // ...
case 'staging': // ...
// ...
}
```
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# Entrypoint Loaders
To generate the manifest and other files at build-time, WXT must import each entrypoint to get their options, like content script `matches`. For HTML files, this is easy. For JS/TS entrypoints, the process is more complicated.
When loading your JS/TS entrypoints, they are imported into a NodeJS environment, not the `browser` environment that they normally run in. This can lead to issues commonly seen when running browser-only code in a NodeJS environment, like missing global variables.
WXT does several pre-processing steps to try and prevent errors during this process:
1. Use `linkedom` to make a small set of browser globals (`window`, `document`, etc) available.
2. Use `@webext-core/fake-browser` to create a fake version of the `chrome` and `browser` globals expected by extensions.
3. Pre-process the JS/TS code, stripping out the `main` function then tree-shaking unused code from the file
However, this process is not perfect. It doesn't setup all the globals found in the browser and the APIs may behave differently. As such, **_you should avoid using browser or extension APIs outside the `main` function of your entrypoints!_**
:::tip
If you're running into errors while importing entrypoints, run `wxt prepare --debug` to see more details about this process. When debugging, WXT will print out the pre-processed code to help you identify issues.
:::
Once the environment has been polyfilled and your code pre-processed, it's up the entrypoint loader to import your code, extracting the options from the default export.
There are two options for loading your entrypoints:
1. `vite-node` - default as of `v0.19.0`
2. `jiti` (**DEPRECATED, will be removed in `v0.20.0`**) - Default before `v0.19.0`
## vite-node
Since 0.19.0, WXT uses `vite-node`, the same tool that powers Vitest and Nuxt, to import your entrypoint files. It re-uses the same vite config used when building your extension, making it the most stable entrypoint loader.
## jiti
To enable `jiti`:
```ts
export default defineConfig({
entrypointLoader: 'jiti',
});
```
This is the original method WXT used to import TS files. However, because it doesn't support vite plugins like `vite-node`, it does one additional pre-processing step: It removes **_ALL_** imports from your code.
That means you cannot use imported variables outside the `main` function in JS entrypoints, like for content script `matches` or other options:
```ts
// entrypoints/content.ts
import { GOOGLE_MATCHES } from '~/utils/match-patterns';
export default defineContentScript({
matches: GOOGLE_MATCHES,
main() {
// ...
},
});
```
```
$ wxt build
wxt build
WXT 0.14.1
Building chrome-mv3 for production with Vite 5.0.5
✖ Command failed after 360 ms
[8:55:54 AM] ERROR entrypoints/content.ts: Cannot use imported variable "GOOGLE_MATCHES" before main function.
```
Usually, this error occurs when you try to extract options into a shared file or when running code outside the `main` function. To fix the example from above, use literal values when defining an entrypoint instead of importing them:
```ts
import { GOOGLE_MATCHES } from '~/utils/match-patterns'; // [!code --]
export default defineContentScript({
matches: GOOGLE_MATCHES, // [!code --]
matches: ['*//*.google.com/*'], // [!code ++]
main() {
// ...
},
});
```
@@ -0,0 +1,58 @@
# Environment Variables
## Dotenv Files
WXT supports [dotenv files the same way as Vite](https://vite.dev/guide/env-and-mode.html#env-files). Create any of the following files:
```
.env
.env.local
.env.[mode]
.env.[mode].local
.env.[browser]
.env.[browser].local
.env.[mode].[browser]
.env.[mode].[browser].local
```
And any environment variables listed inside them will be available at runtime:
```sh
# .env
WXT_API_KEY=...
```
```ts
await fetch(`/some-api?apiKey=${import.meta.env.WXT_API_KEY}`);
```
Remember to prefix any environment variables with `WXT_` or `VITE_`, otherwise they won't be available at runtime, as per [Vite's convention](https://vite.dev/guide/env-and-mode.html#env-files).
## Built-in Environment Variables
WXT provides some custom environment variables based on the current command:
| Usage | Type | Description |
| ---------------------------------- | --------- | ----------------------------------------------------- |
| `import.meta.env.MANIFEST_VERSION` | `2 │ 3` | The target manifest version |
| `import.meta.env.BROWSER` | `string` | The target browser |
| `import.meta.env.CHROME` | `boolean` | Equivalent to `import.meta.env.BROWSER === "chrome"` |
| `import.meta.env.FIREFOX` | `boolean` | Equivalent to `import.meta.env.BROWSER === "firefox"` |
| `import.meta.env.SAFARI` | `boolean` | Equivalent to `import.meta.env.BROWSER === "safari"` |
| `import.meta.env.EDGE` | `boolean` | Equivalent to `import.meta.env.BROWSER === "edge"` |
| `import.meta.env.OPERA` | `boolean` | Equivalent to `import.meta.env.BROWSER === "opera"` |
You can also access all of [Vite's environment variables](https://vite.dev/guide/env-and-mode.html#env-variables):
| Usage | Type | Description |
| ---------------------- | --------- | --------------------------------------------------------------------------- |
| `import.meta.env.MODE` | `string` | The [mode](/guide/essentials/config/build-mode) the extension is running in |
| `import.meta.env.PROD` | `boolean` | When `NODE_ENV='production'` |
| `import.meta.env.DEV` | `boolean` | Opposite of `import.meta.env.PROD` |
:::details Other Vite Environment Variables
Vite provides two other environment variables, but they aren't useful in WXT projects:
- `import.meta.env.BASE_URL`: Use `browser.runtime.getURL` instead.
- `import.meta.env.SSR`: Always `false`.
:::
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# Hooks
WXT includes a system that lets you hook into the build process and make changes.
## Adding Hooks
The easiest way to add a hook is via the `wxt.config.ts`. Here's an example hook that modifies the `manifest.json` file before it is written to the output directory:
```ts
// wxt.config.ts
export default defineConfig({
hooks: {
'build:manifestGenerated': (wxt, manifest) => {
if (wxt.config.mode === 'development') {
manifest.title += ' (DEV)';
}
},
},
});
```
Most hooks provide the `wxt` object as the first argument. It contains the resolved config and other info about the current build. The other arguments can be modified by reference to change different parts of the build system.
Putting one-off hooks like this in your config file is simple, but if you find yourself writing lots of hooks, you should extract them into [WXT Modules](/guide/essentials/wxt-modules) instead.
## Execution Order
Because hooks can be defined in multiple places, including [WXT Modules](/guide/essentials/wxt-modules), the order which they're executed can matter. Hooks are executed in the following order:
1. NPM modules in the order listed in the [`modules` config](/api/reference/wxt/interfaces/InlineConfig#modules)
2. User modules in [`/modules` folder](/guide/essentials/project-structure), loaded alphabetically
3. Hooks listed in your `wxt.config.ts`
To see the order for your project, run `wxt prepare --debug` flag and search for the "Hook execution order":
```
⚙ Hook execution order:
⚙ 1. wxt:built-in:unimport
⚙ 2. src/modules/auto-icons.ts
⚙ 3. src/modules/example.ts
⚙ 4. src/modules/i18n.ts
⚙ 5. wxt.config.ts > hooks
```
Changing execution order is simple:
- Prefix your user modules with a number (lower numbers are loaded first):
<!-- prettier-ignore -->
```html
📁 modules/
📄 0.my-module.ts
📄 1.another-module.ts
```
- If you need to run an NPM module after user modules, just make it a user module and prefix the filename with a number!
```ts
// modules/2.i18n.ts
export { default } from '@wxt-dev/i18n/module';
```
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# Manifest
In WXT, there is no `manifest.json` file in your source code. Instead, WXT generates it during the build process based off files in your project.
## Manifest Config
To manually add a property to the `manifest.json` output during builds, use the `manifest` config inside `wxt.config.ts`:
```ts
export default defineConfig({
manifest: {
// Put manual changes here
},
});
```
You can also define the manifest as a function, and use JS to generate it based on the target browser, mode, and more.
```ts
export default defineConfig({
manifest: ({ browser, manifestVersion, mode, command }) => {
return {
// ...
};
},
});
```
### MV2 and MV3 Compatibility
When adding properties to the manifest, always define the property in it's MV3 format when possible. When targeting MV2, WXT will automatically convert these properties to their MV2 format.
For example, for this config:
```ts
export default defineConfig({
manifest: {
action: {
default_title: 'Some Title',
},
web_accessible_resources: [
{
matches: ['*://*.google.com/*'],
resources: ['icon/*.png'],
},
],
},
});
```
WXT will generate the following manifests:
:::code-group
```json [MV2]
{
"manifest_version": 2,
// ...
"browser_action": {
"default_title": "Some Title"
},
"web_accessible_resources": ["icon/*.png"]
}
```
```json [MV3]
{
"manifest_version": 3,
// ...
"action": {
"default_title": "Some Title"
},
"web_accessible_resources": [
{
"matches": ["*://*.google.com/*"],
"resources": ["icon/*.png"]
}
]
}
```
:::
You can also specify properties specific to a single manifest version, and they will be stripped out when targeting the other manifest version.
## Name
> [Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/manifest/name/)
If not provided via the `manifest` config, the manifest's `name` property defaults to your `package.json`'s `name` property.
## Version and Version Name
> [Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/manifest/version/)
Your extension's `version` and `version_name` is based on the `version` from your `package.json`.
- `version_name` is the exact string listed
- `version` is the string cleaned up, with any invalid suffixes removed
Example:
```json
// package.json
{
"version": "1.3.0-alpha2"
}
```
```json
// .output/<target>/manifest.json
{
"version": "1.3.0",
"version_name": "1.3.0-alpha2"
}
```
If a version is not present in your `package.json`, it defaults to `"0.0.0"`.
## Icons
WXT automatically discovers your extension's icon by looking at files in the `public/` directory:
```
public/
├─ icon-16.png
├─ icon-24.png
├─ icon-48.png
├─ icon-96.png
└─ icon-128.png
```
Specifically, if an icon must match one of these regex to be discovered:
<<< @/../packages/wxt/src/core/utils/manifest.ts#snippet
If you don't like these filename or you're migrating to WXT and don't want to rename the files, you can manually specify an `icon` in your manifest:
```ts
export default defineConfig({
manifest: {
icons: {
16: '/extension-icon-16.png',
24: '/extension-icon-24.png',
48: '/extension-icon-48.png',
96: '/extension-icon-96.png',
128: '/extension-icon-128.png',
},
},
});
```
Alternatively, you can use [`@wxt-dev/auto-icons`](https://www.npmjs.com/package/@wxt-dev/auto-icons) to let WXT generate your icon at the required sizes.
## Permissions
> [Chrome docs](https://developer.chrome.com/docs/extensions/reference/permissions/)
```ts
export default defineConfig({
manifest: {
permissions: ['storage', 'tabs'],
},
});
```
## Host Permissions
> [Chrome docs](https://developer.chrome.com/docs/extensions/develop/concepts/declare-permissions#host-permissions)
```ts
export default defineConfig({
manifest: {
permissions: ['storage', 'tabs'],
},
});
```
:::warning
If you use host permissions and target both MV2 and MV3, make sure to only include the required host permissions for each version:
```ts
export default defineConfig({
manifest: ({ manifestVersion }) => ({
host_permissions: manifestVersion === 2 ? [...] : [...],
}),
});
```
:::
## Default Locale
```ts
export default defineConfig({
manifest: {
name: '__MSG_extName__',
description: '__MSG_extDescription__',
default_locale: 'en',
},
});
```
> See [I18n docs](/guide/essentials/i18n) for a full guide on internationalizing your extension.
## Actions
In MV2, you have two options: [`browser_action`](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/browser_action) and [`page_action`](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/page_action). In MV3, they were merged into a single [`action`](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/action) API.
By default, whenever an `action` is generated, WXT falls back to `browser_action` when targeting MV2.
### Action With Popup
To generate a manifest where a UI appears after clicking the icon, just create a [Popup entrypoint](/guide/essentials/entrypoints#popup).
```ts
export default defineConfig({
hooks: {
build: {
manifestGenerated(manifest) {
// Update the manifest variable by reference
manifest.name = 'Overriden name';
},
},
},
});
```
If you want to use a `page_action` for MV2, add the following meta tag to the HTML document's head:
```html
<meta name="manifest.type" content="page_action" />
```
### Action Without Popup
If you want to use the `activeTab` permission or the `browser.action.onClicked` event, but don't want to show a popup:
1. Delete the [Popup entrypoint](/guide/essentials/entrypoints#popup) if it exists
2. Add the `action` key to your manifest:
```ts
export default defineConfig({
manifest: {
action: {},
},
});
```
Same as an action with a popup, WXT will fallback on using `browser_action` for MV2. To use a `page_action` instead, add that key as well:
```ts
export default defineConfig({
manifest: {
action: {},
page_action: {},
},
});
```
+56
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@@ -0,0 +1,56 @@
# Runtime Config
> This API is still a WIP, with more features coming soon!
Define runtime configuration in a single place, `<srcDir>/app.config.ts`:
```ts
import { defineAppConfig } from 'wxt/sandbox';
// Define types for your config
declare module 'wxt/sandbox' {
export interface WxtAppConfig {
theme?: 'light' | 'dark';
}
}
export default defineAppConfig({
theme: 'dark',
});
```
:::warning
This file is committed to the repo, so don't put any secrets here. Instead, use [Environment Variables](#environment-variables)
:::
To access runtime config, WXT provides the `useAppConfig` function:
```ts
import { useAppConfig } from 'wxt/sandbox';
console.log(useAppConfig()); // { theme: "dark" }
```
## Environment Variables in App Config
You can use environment variables in the `app.config.ts` file.
```ts
declare module 'wxt/sandbox' {
export interface WxtAppConfig {
apiKey?: string;
skipWelcome: boolean;
}
}
export default defineAppConfig({
apiKey: import.meta.env.WXT_API_KEY,
skipWelcome: import.meta.env.WXT_SKIP_WELCOME === 'true',
});
```
This has several advantages:
- Define all expected environment variables in a single file
- Convert strings to other types, like booleans or arrays
- Provide default values if an environment variable is not provided
@@ -0,0 +1,65 @@
# TypeScript Configuration
When you run [`wxt prepare`](/api/cli/wxt-prepare), WXT generates a base TSConfig file for your project at `<rootDir>/.wxt/tsconfig.json`.
At a minimum, you need to create a TSConfig in your root directory that looks like this:
```jsonc
// <rootDir>/tsconfig.json
{
"extends": ".wxt/tsconfig.json",
}
```
Or if you're in a monorepo, you may not want to extend the config. If you don't extend it, you need to add `.wxt/wxt.d.ts` to the TypeScript project:
```ts
/// <reference types="./.wxt/wxt.d.ts" />
```
## Compiler Options
To specify custom compiler options, add them in `<rootDir>/tsconfig.json`:
```jsonc
// <rootDir>/tsconfig.json
{
"extends": ".wxt/tsconfig.json",
"compilerOptions": {
"jsx": "preserve",
},
}
```
## TSConfig Paths
WXT provides a default set of path aliases.
| Alias | To | Example |
| ----- | ------------- | ----------------------------------------------- |
| `~~` | `<rootDir>/*` | `import "~~/scripts"` |
| `@@` | `<rootDir>/*` | `import "@@/scripts"` |
| `~` | `<srcDir>/*` | `import { toLowerCase } from "~/utils/strings"` |
| `@` | `<srcDir>/*` | `import { toLowerCase } from "@/utils/strings"` |
To add your own, DO NOT add them to your `tsconfig.json`! Instead, use the [`alias` option](/api/reference/wxt/interfaces/InlineConfig#alias) in `wxt.config.ts`.
This will add your custom aliases to `<rootDir>/.wxt/tsconfig.json` next time you run `wxt prepare`. It also adds your alias to the bundler so it can resolve imports.
```ts
import { resolve } from 'node:path';
export default defineConfig({
alias: {
// Directory:
testing: resolve('utils/testing'),
// File:
strings: resolve('utils/strings.ts'),
},
});
```
```ts
import { fakeTab } from 'testing/fake-objects';
import { toLowerCase } from 'strings';
```
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@@ -0,0 +1,68 @@
# Vite
WXT uses [Vite](https://vitejs.dev/) under the hood to bundle your extension.
This page explains how to customize your project's Vite config. Refer to [Vite's documentation](https://vite.dev/config/) to learn more about configuring the bundler.
:::tip
In most cases, you shouldn't change Vite's build settings. WXT provides sensible defaults that output a valid extension accepted by all stores when publishing.
:::
## Change Vite Config
You can change Vite's config via the `wxt.config.ts` file:
```ts
// wxt.config.ts
import { defineConfig } from 'wxt';
export default defineConfig({
vite: () => ({
// Override config here, same as `defineConfig({ ... })`
// inside vite.config.ts files
}),
});
```
## Add Vite Plugins
To add a plugin, install the NPM package and add it to the Vite config:
```ts
// wxt.config.ts
import { defineConfig } from 'wxt';
import VueRouter from 'unplugin-vue-router/vite';
export default defineConfig({
vite: () => ({
plugins: [
VueRouter({
/* ... */
}),
],
}),
});
```
:::warning
Due to the way WXT orchestrates Vite builds, some plugins may not work as expected. For example, `vite-plugin-remove-console` normally only runs when you build for production (`vite build`). However, WXT uses a combination of dev server and builds during development, so you need to manually tell it when to run:
```ts
// wxt.config.ts
import { defineConfig } from 'wxt';
import removeConsole from 'vite-plugin-remove-console';
export default defineConfig({
vite: (configEnv) => ({
plugins:
configEnv.mode === 'production'
? [removeConsole({ includes: ['log'] })]
: [],
}),
});
```
Search [GitHub issues](https://github.com/wxt-dev/wxt/issues?q=is%3Aissue+label%3A%22vite+plugin%22) if you run into issues with a specific plugin.
If an issue doesn't exist for your plugin, [open a new one](https://github.com/wxt-dev/wxt/issues/new/choose).
:::
@@ -1,8 +1,102 @@
# Content Script UI
---
outline: deep
---
There are three ways to mount a UI inside a content script:
# Content Scripts
[[toc]]
## Context
The first argument to a content script's `main` function is it's "context".
```ts
// entrypoints/content.ts
export default defineContentScript({
main(ctx) {},
});
```
This object is responsible for tracking whether or not the content script's context is "invalidated". Most browsers, by default, do not stop content scripts if the extension is uninstalled, updated, or disabled. When this happens, content scripts start reporting this error:
```
Error: Extension context invalidated.
```
The `ctx` object provides several helpers to stop asynchronous code from running once the context is invalidated:
```ts
ctx.addEventListener(...);
ctx.setTimeout(...);
ctx.setInterval(...);
ctx.requestAnimationFrame(...);
// and more
```
You can also check if the context is invalidated manually:
```ts
if (ctx.isValid) {
// do something
}
// OR
if (ctx.isInvalid) {
// do something
}
```
## CSS
In regular web extensions, CSS for content scripts is usually a separate CSS file, that is added to a CSS array in the manifest:
```json
{
"content_scripts": [
{
"css": ["content/style.css"],
"js": ["content/index.js"],
"matches": ["*://*/*"]
}
]
}
```
In WXT, to add CSS to a content script, simply import the CSS file into your JS entrypoint, and WXT will automatically add the bundled CSS output to the `css` array.
```ts
// entrypoints/content/index.ts
import './style.css';
export default defineContentScript({
// ...
});
```
To create a standalone content script that only includes a CSS file:
1. Create the CSS file: `entrypoints/example.content.css`
2. Use the `build:manifestGenerated` hook to add the content script to the manifest:
```ts
// wxt.config.ts
export default defineConfig({
hooks: {
"build:manifestGenerated": (wxt, manifest) => {
manifest.content_scripts ??= [];
manifest.content_scripts.push({
// Build extension once to see where your CSS get's written to
css: ["content-scripts/example.css"],
matches: ["*://*/*"]
)
}
}
})
```
## UI
WXT provides 3 built-in utilities for adding UIs to a page from a content script:
- [Integrated](#integrated) - `createIntegratedUi`
- [Shadow Root](#shadow-root) -`createShadowRootUi`
- [IFrame](#iframe) - `createIframeUi`
Each has their own set of advantages and disadvantages.
@@ -12,7 +106,7 @@ Each has their own set of advantages and disadvantages.
| Shadow Root | ✅ | ✅ (off by default) | ❌ | ✅ |
| IFrame | ✅ | ✅ | ✅ | ❌ |
## Integrated
### Integrated
Integrated content script UIs are injected alongside the content of a page. This means that they are affected by CSS on that page.
@@ -26,6 +120,7 @@ export default defineContentScript({
main(ctx) {
const ui = createIntegratedUi(ctx, {
position: 'inline',
anchor: 'body',
onMount: (container) => {
// Append children to the container
const app = document.createElement('p');
@@ -51,6 +146,7 @@ export default defineContentScript({
main(ctx) {
const ui = createIntegratedUi(ctx, {
position: 'inline',
anchor: 'body',
onMount: (container) => {
// Create the app and mount it to the UI container
const app = createApp(App);
@@ -80,6 +176,7 @@ export default defineContentScript({
main(ctx) {
const ui = createIntegratedUi(ctx, {
position: 'inline',
anchor: 'body',
onMount: (container) => {
// Create a root on the UI container and render a component
const root = ReactDOM.createRoot(container);
@@ -108,6 +205,7 @@ export default defineContentScript({
main(ctx) {
const ui = createIntegratedUi(ctx, {
position: 'inline',
anchor: 'body',
onMount: (container) => {
// Create the Svelte app inside the UI container
const app = new App({
@@ -137,6 +235,7 @@ export default defineContentScript({
main(ctx) {
const ui = createIntegratedUi(ctx, {
position: 'inline',
anchor: 'body',
onMount: (container) => {
// Render your app to the UI container
const unmount = render(() => <div>...</div>, container);
@@ -157,13 +256,11 @@ export default defineContentScript({
See the [API Reference](/api/reference/wxt/client/functions/createIntegratedUi) for the complete list of options.
You can control how CSS is injected for an integrated content script UI with the [`cssInjectionMode`](/api/reference/wxt/interfaces/BaseContentScriptEntrypointOptions#cssinjectionmode) property. Usually, you'll want to leave it as `"manifest"`, the default, so the UI inherits its style from the website's CSS.
## Shadow Root
### Shadow Root
Often in web extensions, you don't want your content script's CSS affecting the page, or vise-versa. The [`ShadowRoot`](https://developer.mozilla.org/en-US/docs/Web/API/ShadowRoot) API is ideal for this.
WXT's [`createShadowRootUi`](/api/reference/wxt/client/functions/createShadowRootUi) abstracts all the `ShadowRoot` setup away, making it easy to create UIs with isolated CSS. It also supports an optional `isolateEvents` parameter to further isolate user interactions.
WXT's [`createShadowRootUi`](/api/reference/wxt/client/functions/createShadowRootUi) abstracts all the `ShadowRoot` setup away, making it easy to create UIs whose styles are isolated from the page. It also supports an optional `isolateEvents` parameter to further isolate user interactions.
To use `createShadowRootUi`, follow these steps:
@@ -188,6 +285,7 @@ export default defineContentScript({
const ui = await createShadowRootUi(ctx, {
name: 'example-ui',
position: 'inline',
anchor: 'body',
onMount(container) {
// Define how your UI will be mounted inside the container
const app = document.createElement('p');
@@ -218,6 +316,7 @@ export default defineContentScript({
const ui = await createShadowRootUi(ctx, {
name: 'example-ui',
position: 'inline',
anchor: 'body',
onMount: (container) => {
// Define how your UI will be mounted inside the container
const app = createApp(App);
@@ -252,6 +351,7 @@ export default defineContentScript({
const ui = await createShadowRootUi(ctx, {
name: 'example-ui',
position: 'inline',
anchor: 'body',
onMount: (container) => {
// Container is a body, and React warns when creating a root on the body, so create a wrapper div
const app = document.createElement('div');
@@ -289,6 +389,7 @@ export default defineContentScript({
const ui = await createShadowRootUi(ctx, {
name: 'example-ui',
position: 'inline',
anchor: 'body',
onMount: (container) => {
// Create the Svelte app inside the UI container
const app = new App({
@@ -323,6 +424,7 @@ export default defineContentScript({
const ui = await createShadowRootUi(ctx, {
name: 'example-ui',
position: 'inline',
anchor: 'body',
onMount: (container) => {
// Render your app to the UI container
const unmount = render(() => <div>...</div>, container);
@@ -343,17 +445,18 @@ export default defineContentScript({
See the [API Reference](/api/reference/wxt/client/functions/createShadowRootUi) for the complete list of options.
:::info TailwindCSS
`createShadowRootUi` supports TailwindCSS out of the box! When importing the styles, just import the main CSS file containing the `@tailwind` directives, and everything will just work :+1:.
:::
Full examples:
## IFrame
- [react-content-script-ui](https://github.com/wxt-dev/examples/tree/main/examples/react-content-script-ui)
- [tailwindcss](https://github.com/wxt-dev/examples/tree/main/examples/tailwindcss)
### IFrame
If you don't need to run your UI in the same frame as the content script, you can use an IFrame to host your UI instead. Since an IFrame just hosts an HTML page, **_HMR is supported_**.
WXT provides a helper function, [`createIframeUi`](/api/reference/wxt/client/functions/createIframeUi), which simplifies setting up the IFrame.
1. Create an HTML page that will be loaded into your IFrame
1. Create an HTML page that will be loaded into your IFrame:
```html
<!-- entrypoints/example-iframe.html -->
<!doctype html>
@@ -368,7 +471,7 @@ WXT provides a helper function, [`createIframeUi`](/api/reference/wxt/client/fun
</body>
</html>
```
1. Add the page to the manifest's `web_accessible_resources`
1. Add the page to the manifest's `web_accessible_resources`:
```ts
// wxt.config.ts
export default defineConfig({
@@ -382,7 +485,7 @@ WXT provides a helper function, [`createIframeUi`](/api/reference/wxt/client/fun
},
});
```
1. Create and mount the IFrame
1. Create and mount the IFrame:
```ts
export default defineContentScript({
@@ -393,6 +496,7 @@ WXT provides a helper function, [`createIframeUi`](/api/reference/wxt/client/fun
const ui = createIframeUi(ctx, {
page: '/example-iframe.html',
position: 'inline',
anchor: 'body',
onMount: (wrapper, iframe) => {
// Add styles to the iframe like width
iframe.width = '123';
@@ -406,3 +510,104 @@ WXT provides a helper function, [`createIframeUi`](/api/reference/wxt/client/fun
```
See the [API Reference](/api/reference/wxt/client/functions/createIframeUi) for the complete list of options.
## Isolated World vs Main World
By default, all content scripts run in an isolated context where only the DOM is shared with the webpage it is running on - an "isolated world". In MV3, Chromium introduced the ability to run content scripts in the "main" world - where everything, not just the DOM, is available to the content script, just like if the script were loaded by the webpage.
You can enable this for a content script by setting the `world` option:
```ts
export default defineContentScript({
world: 'MAIN',
});
```
However, this approach has several notable drawbacks:
- Doesn't support MV2
- `world: "MAIN"` is only supported by Chromium browsers
- Main world content scripts don't have access to the extension API
Instead, WXT recommends injecting a script into the main world manually using it's `injectScript` function. This will address the drawbacks mentioned before.
- `injectScript` supports both MV2 and MV3
- `injectScript` supports all browsers
- Having a "parent" content script means you can send messages back and forth, making it possible to access the extension API
To use `injectScript`, we need two entrypoints, one content script and one unlisted script:
<!-- prettier-ignore -->
```html
📂 entrypoints/
📄 example.content.ts
📄 example-main-world.ts
```
```ts
// entrypoints/example-main-world.ts
export default defineUnlistedScript(() => {
console.log('Hello from the main world!');
});
```
```ts
// entrypoints/example.content.ts
export default defineContentScript(async () => {
await injectScript('/example-main-world.js', {
keepInDom: true,
});
});
```
`injectScript` works by creating a `script` element on the page pointing to your script. This loads the script into the page's context so it runs in the main world.
`injectScript` returns a promise, that when resolved, means the script has been evaluated by the browser and you can start communicating with it.
:::warning Warning: `run_at` Caveat
For MV3, `injectScript` is synchronous and the injected script will be evaluated at the same time as your the content script's `run_at`.
However for MV2, `injectScript` has to `fetch` the script's text content and create an inline `<script>` block. This means for MV2, your script is injected asynchronously and it will not be evaluated at the same time as your content script's `run_at`.
:::
## Dealing with SPAs
It is difficult to write content scripts for SPAs (single page applications) and websites using HTML5 history mode for navigation because content scripts are only ran on full page reloads. SPAs and websites that take advantage of HTML5 history mode **_do not perform a full reload when changing paths_**, and thus your content script isn't going to be ran when you expect it to be.
Let's look at an example. Say you want to add a UI to YouTube when watching a video:
```ts
export default defineContentScript({
matches: ['*://*.youtube.com/watch*'],
main(ctx) {
console.log('YouTube content script loaded');
mountUi(ctx);
},
});
function mountUi(ctx: ContentScriptContext): void {
// ...
}
```
You're only going to see "YouTube content script loaded" when reloading the watch page or when navigating directly to it from another website.
To get around this, you'll need to manually listen for the path to change and run your content script when the URL matches what you expect it to match.
```ts
const watchPattern = new MatchPattern('*://*.youtube.com/watch*');
export default defineContentScript({
matches: ['*://*.youtube.com/*'],
main(ctx) {
ctx.addEventListener(window, 'wxt:locationchange', ({ newUrl }) => {
if (watchPattern.matches(newUrl)) mainWatch(ctx);
});
},
});
function mainWatch(ctx: ContentScriptContext) {
mountUi(ctx);
}
```
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@@ -0,0 +1,9 @@
# E2E Testing
## Playwright
[Playwright](https://playwright.dev) is the only good option for writing Chrome Extension end-to-end tests.
To add E2E tests to your project, follow Playwright's [Chrome Extension docs](https://playwright.dev/docs/chrome-extensions). When you have to pass the path to your extension, pass the output directory, `/path/to/project/.output/chrome-mv3`.
For a complete example, see the [WXT's Playwright Example](https://github.com/wxt-dev/examples/tree/main/examples/playwright-e2e-testing).
+535
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@@ -0,0 +1,535 @@
---
outline: deep
---
# Entrypoints
WXT uses the files inside the `entrypoints/` directory as inputs when bundling your extension. They can be HTML, JS, CSS, or any variant of those file types supported by Vite (Pug, TS, JSX, SCSS, etc).
Here's an example set of entrypoints:
<!-- prettier-ignore -->
```html
📂 entrypoints/
📂 popup/
📄 index.html
📄 main.ts
📄 style.css
📄 background.ts
📄 content.ts
```
[[toc]]
## Listed vs Unlisted
For web extensions, there are two types of entrypoints:
- **Listed**: Referenced in the `manifest.json`
- **Unlisted**: Not referenced in the `manifest.json`
Throughout the rest of WXT's documentation, listed files are referred to by name. For example:
- Popup
- Options
- Background
- Content Scripts
- Etc.
Some examples of "unlisted" entrypoints:
- A welcome page shown when the extension is installed
- JS files injected by content scripts into the page's main world
:::tip
Regardless of whether a entrypoint is listed or unlisted, it will still be bundled into your extension and be available at runtime.
:::
## Adding Entrypoints
An entrypoint can be defined as a single file or directory with an `index` file inside it.
:::code-group
<!-- prettier-ignore -->
```html [Single File]
📂 entrypoints/
📄 background.ts
```
<!-- prettier-ignore -->
```html [Directory]
📂 entrypoints/
📂 background/
📄 index.ts
```
:::
The entrypoint's name dictates the type of entrypoint, listed vs unlisted. In this example, "background" is the name of the ["Background" entrypoint](#background).
Refer to the [Entrypoint Types](#entrypoint-types) section for the full list of listed entrypoints and their filename patterns.
## Defining Manifest Options
Most listed entrypoints have options that need to be added to the `manifest.json`. With WXT however, instead of defining the options in a separate file, _you define these options inside the entrypoint file itself_.
For example, here's how to define `matches` for content scripts:
```ts
// entrypoints/content.ts
export default defineContentScript({
matches: ['*://*.wxt.dev/*'],
main() {
// ...
},
});
```
> Refer to the [Entrypoint Types](#entrypoint-types) sections for a list of options configurable inside each entrypoint, and how to define them.
When building your extension, WXT will look at the options defined in your entrypoints, and generate the manifest accordingly.
## Entrypoint Types
### Background
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/manifest/background/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/background)
For MV2, the background is added as a script to the background page. For MV3, the background becomes a service worker.
<EntrypointPatterns
:patterns="[
['background.[jt]s', 'background.js'],
['background/index.[jt]s', 'background.js'],
]"
/>
:::code-group
```ts [Minimal]
export default defineBackground(() => {
// Executed when background is loaded
});
```
```ts [With Manifest Options]
export default defineBackground({
// Set manifest options
persistent: undefined | true | false,
type: undefined | 'module',
// Set include/exclude if the background should be removed from some builds
include: undefined | string[],
exclude: undefined | string[],
main() {
// Executed when background is loaded, CANNOT BE ASYNC
},
});
```
:::
### Bookmarks
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/override/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/chrome_url_overrides)
<EntrypointPatterns
:patterns="[
['bookmarks.html', 'bookmarks.html'],
['bookmarks/index.html', 'bookmarks.html'],
]"
/>
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Title</title>
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
### Content Scripts
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/content_scripts/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Content_scripts)
See [Content Script UI](/guide/essentials/content-scripts) for more info on creating UIs and including CSS in content scripts.
<EntrypointPatterns
:patterns="[
['content.[jt]sx?', 'content-scripts/content.js'],
['content/index.[jt]sx?', 'content-scripts/content.js'],
['<name>.content.[jt]sx?', 'content-scripts/<name>.js'],
['<name>.content/index.[jt]sx?', 'content-scripts/<name>.js'],
]"
/>
```ts
export default defineContentScript({
// Set manifest options
matches: string[],
excludeMatches: undefined | [],
includeGlobs: undefined | [],
excludeGlobs: undefined | [],
allFrames: undefined | true | false,
runAt: undefined | 'document_start' | 'document_end' | 'document_idle',
matchAboutBlank: undefined | true | false,
matchOriginAsFallback: undefined | true | false,
world: undefined | 'ISOLATED' | 'MAIN',
// Set include/exclude if the background should be removed from some builds
include: undefined | string[],
exclude: undefined | string[],
// Configure how CSS is injected onto the page
cssInjectionMode: undefined | "manifest" | "manual" | "ui",
// Configure how/when content script will be registered
registration: undefined | "manifest" | "runtime",
main(ctx: ContentScriptContext) {
// Executed when content script is loaded, can be async
},
});
```
### Devtools
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/devtools/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/devtools_page)
Follow the [Devtools Example](https://github.com/wxt-dev/examples/tree/main/examples/devtools-extension#readme) to add different panels and panes.
<EntrypointPatterns
:patterns="[
['devtools.html', 'devtools.html'],
['devtools/index.html', 'devtools.html'],
]"
/>
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
### History
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/override/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/chrome_url_overrides)
<EntrypointPatterns
:patterns="[
['history.html', 'history.html'],
['history/index.html', 'history.html'],
]"
/>
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Title</title>
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
### Newtab
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/override/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/chrome_url_overrides)
<EntrypointPatterns
:patterns="[
['newtab.html', 'newtab.html'],
['newtab/index.html', 'newtab.html'],
]"
/>
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Title</title>
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
### Options
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/options/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/options_ui)
<EntrypointPatterns
:patterns="[
['options.html', 'options.html'],
['options/index.html', 'options.html'],
]"
/>
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta
name="viewportYou are responsible for loading/running these scripts where needed. If necessary, don't forget to add the script and/or any related stylesheets to web_accessible_resources."
content="width=device-width, initial-scale=1.0"
/>
<title>Options Title</title>
<meta name="manifest.open_in_tab" content="true|false" />
<meta name="manifest.chrome_style" content="true|false" />
<meta name="manifest.browser_style" content="true|false" />
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
### Popup
[Chrome Docs](https://developer.chrome.com/docs/extensions/reference/action/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/action)
<EntrypointPatterns
:patterns="[
['popup.html', 'popup.html'],
['popup/index.html', 'popup.html'],
]"
/>
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Default Popup Title</title>
<meta
name="manifest.default_icon"
content="{
16: '/icon-16.png',
24: '/icon-24.png',
...
}"
/>
<meta name="manifest.type" content="page_action|browser_action" />
<meta name="manifest.browser_style" content="true|false" />
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
### Sandbox
[Chrome Docs](https://developer.chrome.com/docs/extensions/mv3/manifest/sandbox/)
:::warning Chromium Only
Firefox does not support sandboxed pages.
:::
<EntrypointPatterns
:patterns="[
['sandbox.html', 'sandbox.html'],
['sandbox/index.html', 'sandbox.html'],
['<name>.sandbox.html', '<name>.html'],
['<name>.sandbox/index.html', '<name>.html'],
]"
/>
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Title</title>
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
### Side Panel
[Chrome Docs](https://developer.chrome.com/docs/extensions/reference/sidePanel/) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Sidebars)
In Chrome, side panels use the `side_panel` API, while Firefox uses the `sidebar_action` API.
<EntrypointPatterns
:patterns="[
['sidepanel.html', 'sidepanel.html'],
['sidepanel/index.html', 'sidepanel.html'],
['<name>.sidepanel.html', '<name>.html` '],
['<name>.sidepanel/index.html', '<name>.html` '],
]"
/>
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Default Side Panel Title</title>
<meta
name="manifest.default_icon"
content="{
16: '/icon-16.png',
24: '/icon-24.png',
...
}"
/>
<meta name="manifest.open_at_install" content="true|false" />
<meta name="manifest.browser_style" content="true|false" />
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
### Unlisted CSS
Follow Vite's guide to setup your preprocessor of choice: https://vitejs.dev/guide/features.html#css-pre-processors
CSS entrypoints are always unlisted. To add CSS to a content script, see the [Content Script](/guide/essentials/content-scripts#css) docs.
<EntrypointPatterns
:patterns="[
['<name>.(css|scss|sass|less|styl|stylus)', '<name>.css'],
['<name>/index.(css|scss|sass|less|styl|stylus)', '<name>.css'],
['content.(css|scss|sass|less|styl|stylus)', 'content-scripts/content.css'],
['content/index.(css|scss|sass|less|styl|stylus)', 'content-scripts/content.css'],
['<name>.content.(css|scss|sass|less|styl|stylus)', 'content-scripts/<name>.css'],
['<name>.content/index.(css|scss|sass|less|styl|stylus)', 'content-scripts/<name>.css'],
]"
/>
```css
body {
/* ... */
}
```
### Unlisted Pages
<EntrypointPatterns
:patterns="[
['<name>.html', '<name>.html'],
['<name>/index.html', '<name>.html'],
]"
/>
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Title</title>
<!-- Set include/exclude if the page should be removed from some builds -->
<meta name="manifest.include" content="['chrome', ...]" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
Pages are accessible at `/<name>.html`:
```ts
const url = browser.runtime.getURL('/<name>.html');
console.log(url); // "chrome-extension://<id>/<name>.html"
```
### Unlisted Scripts
<EntrypointPatterns
:patterns="[
['<name>.[jt]sx?', '<name>.js'],
['<name>/index.[jt]sx?', '<name>.js'],
]"
/>
:::code-group
```ts [Minimal]
export default defineUnlistedScript(() => {
// Executed when script is loaded
});
```
```ts [With Options]
export default defineUnlistedScript({
// Set include/exclude if the script should be removed from some builds
include: undefined | string[],
exclude: undefined | string[],
main() {
// Executed when script is loaded
},
});
```
:::
Scripts are accessible from `/<name>.js`:
```ts
const url = browser.runtime.getURL('/<name>.js');
console.log(url); // "chrome-extension://<id>/<name>.js"
```
You are responsible for loading/running these scripts where needed. If necessary, don't forget to add the script and/or any related stylesheets to [`web_accessible_resources`](https://developer.chrome.com/docs/extensions/reference/manifest/web-accessible-resources).
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@@ -0,0 +1,38 @@
# ES Modules
Currently, ESM entrypoints are opt-in, so you must configure each entrypoint with that in mind.
## HTML Pages <Badge type="warning" text="≥0.0.1" />
In general, you should always make HTML pages import ESM scripts, unless you need to support old browsers.
To make a script ESM, add `type="module"`:
<!-- prettier-ignore -->
```html
<script src="./main.ts"></script> <!-- [!code --] -->
<script src="./main.ts" type="module"></script> <!-- [!code ++] -->
```
## Background <Badge type="warning" text="≥0.16.0" />
In your background script, set `type: "module"`:
```ts
export default defineBackground({
type: 'module', // !code ++
main() {
// ...
},
});
```
:::warning
Only MV3 supports ESM background scripts/service workers. When targeting MV2, the `type` option is ignored and the background is always bundled into a single file as IIFE.
:::
## Content Scripts
WXT does not yet include built-in support for ESM content scripts. The plan is to add support for chunking to reduce bundle size, but not support HMR for now. There are several technical issues that make implementing a generic solution for HMR impossible. See [Content Script ESM Support #357](https://github.com/wxt-dev/wxt/issues/357) for details.
If you can't wait, and need ESM support right now, you can implement ESM support manually. See the [ESM Content Script UI](https://github.com/wxt-dev/examples/tree/main/examples/esm-content-script-ui) example to get started.
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# Extension APIs
[Chrome Docs](https://developer.chrome.com/docs/extensions/reference/api) • [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Browser_support_for_JavaScript_APIs)
Different browsers provide different global variables for accessing the extension APIs (chrome provides `chrome`, firefox provides `browser`, etc).
WXT simplifies this - always use `browser`:
```ts
browser.action.onClicked.addListener(() => {
// ...
});
```
Other than that, refer to Chrome and Mozilla's documentation for how to use specific APIs. Everything a normal extension can do, WXT can do as well, just via `browser` instead of `chrome`.
## Webextension Polyfill
> Since `v0.1.0`
By default, WXT uses the [`webextension-polyfill` by Mozilla](https://www.npmjs.com/package/webextension-polyfill) to make the extension API consistent between browsers.
To access types, you should import the relevant namespace from `wxt/browser`:
```ts
import { Runtime } from 'wxt/browser';
function handleMessage(message: any, sender: Runtime.Sender) {
// ...
}
```
### Disabling the polyfill
> Since `v0.19.0`
After the release of MV3 and Chrome's official deprecation of MV2 in June 2024, the polyfill isn't really doing anything useful anymore.
You can disable it with a single line:
```ts
// wxt.config.ts
export default defineConfig({
extensionApi: 'chrome',
});
```
This will change `wxt/browser` to simply export the `browser` or `chrome` globals based on browser at runtime:
<<< @/../packages/wxt/src/browser/chrome.ts#snippet
Accessing types is a little different with the polyfill disabled. They do not need to be imported; they're available on the `browser` object itself:
```ts
function handleMessage(message: any, sender: browser.runtime.Sender) {
// ...
}
```
## Feature Detection
Depending on the manifest version and browser, some APIs are not available at runtime. If an API is not available, it will be `undefined`.
:::warning
Types will not help you here. The types WXT provides for `browser` assume all APIs exist. You are responsible for knowing whether an API is available or not.
:::
To check if an API is available, use feature detection:
```ts
if (browser.runtime.onSuspend != null) {
browser.runtime.onSuspend.addListener(() => {
// ...
});
}
```
Here, [optional chaining](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining) is your best friend:
```ts
browser.runtime.onSuspend?.addListener(() => {
// ...
});
```
Alternatively, if you're trying to use similar APIs under different names (to support MV2 and MV3), you can do something like this:
```ts
(browser.action ?? browser.browser_action).onClicked.addListener(() => {
//
});
```
@@ -2,7 +2,7 @@
## Built-in Modules
WXT has preconfigured modules for 4 frameworks:
WXT has preconfigured modules for the most popular frontend frameworks:
- [`@wxt-dev/module-react`](https://github.com/wxt-dev/wxt/tree/main/packages/module-react)
- [`@wxt-dev/module-vue`](https://github.com/wxt-dev/wxt/tree/main/packages/module-vue)
@@ -64,45 +64,36 @@ export default defineConfig({
});
```
The WXT modules just simplify the configuration and add auto-imports. They're not much different than the above.
> The WXT modules just simplify the configuration and add auto-imports. They're not much different than the above.
## Multiple Apps
Since web extensions usually contain multiple UIs as separate HTML files (popup, options, changelog, side panel, etc), you'll need to create individual app instances, one per HTML page.
Since web extensions usually contain multiple UIs across multiple entrypoints (popup, options, changelog, side panel, content scripts, etc), you'll need to create individual app instances, one per entrypoint.
Usually, this means each entrypoint should be a directory with it's own files inside it:
Usually, this means each entrypoint should be a directory with it's own files inside it. Here's the recommended folder structure:
```
<root>/
├ assets/ <------------------ Put shared assets here
│ ├ style.css <------------ Like styles all your pages share
│ └ ...
components/ <-------------- Put shared components here
│ └ ...
entrypoints/
├ popup/ <--------------- Use a folder with an index.html file in it
│ ├ index.html
│ ├ main.tsx <--------- Create and mount your app here
│ ├ style.css <-------- Have some global styles to apply?
└ ... <--------------- Rest of the files can be named whatever
└ options/
├ pages/ <------------ A good place to put your router pages
│ ├ [id]/
│ │ └ details.tsx
│ ├ index.tsx
│ └...
├ index.html
├ App.vue
├ main.ts
├ style.css
└ router.ts
<!-- prettier-ignore -->
```html
📂 {srcDir}/
📂 assets/ <---------- Put shared assets here
📄 tailwind.css
📂 components/
📄 Button.tsx
📂 entrypoints/
📂 options/ <--------- Use a folder with an index.html file in it
📁 pages/ <--------- A good place to put your router pages if you have them
📄 index.html
📄 App.tsx
📄 main.tsx <--------- Create and mount your app here
📄 style.css <--------- Entrypoint-specific styles
📄 router.ts
```
## Configuring Routers
Lots of frameworks come with routers for building a multi-page app using the URL's path. Chrome extensions don't don't work like this. Since HTML files are static, `chrome-extension://{id}/popup.html`, there's no way to change the entire path for routing.
All frameworks come with routers for building a multi-page app using the URL's path... But web extensions don't work like this. Since HTML files are static, `chrome-extension://{id}/popup.html`, there's no way to change the entire path for routing.
Instead, you need to configure the router to run in "hash" mode, where the routing information is apart of the URL's hash, not the path (ie: `popup.html#/` and `popup.html#/account/settings`).
Instead, you need to configure the router to run in "hash" mode, where the routing information is a part of the URL's hash, not the path (ie: `popup.html#/` and `popup.html#/account/settings`).
Refer to your router's docs for information about hash mode and how to enable it. Here's a non-extensive list of a few popular routers:
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# I18n
[Chrome Docs](https://developer.chrome.com/docs/extensions/reference/api/i18n) • [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/i18n)
This page discusses how to setup internationalization using the vanilla `browser.i18n` APIs and mentions some alternatives if you want to use something else.
[[toc]]
## Usage
1. Add `default_locale` to your manifest:
```ts
export default defineConfig({
manifest: {
default_locale: 'en',
},
});
```
2. Create `messages.json` files in the `public/` directory:
<!-- prettier-ignore -->
```html
📂 {srcDir}/
📂 public/
📂 _locales/
📂 en/
📄 messages.json
📂 de/
📄 messages.json
📂 ko/
📄 messages.json
```
```jsonc
// public/_locales/en/messages.json
{
"helloWorld": {
"message": "Hello world!",
},
}
```
3. Get the translation:
```ts
browser.i18n.getMessage('helloWorld');
```
4. _Optional_: Add translations for extension name and description:
```json
{
"extName": {
"message": "..."
},
"extDescription": {
"message": "..."
},
"helloWorld": {
"message": "Hello world!"
}
}
```
```ts
export default defineConfig({
manifest: {
name: '__MSG_extName__',
description: '__MSG_extDescription__',
default_locale: 'en',
},
});
```
## Alternatives
The vanilla API has very few features, which is why you may want to consider using third-party NPM packages like `i18next`, `react-i18n`, `vue-i18n`, etc.
However, it is recommended you stick with the vanilla API (or a package based on top of the vanilla API, like [`@wxt-dev/i18n`](/i18n)), because:
- They can localize text in your manifest and CSS files
- Translations are loaded synchronously
- Translations are not bundled multiple times, keeping your extension small
- Zero configuration
Here are some examples of how to setup a third party i18n library:
- [vue-i18n](https://github.com/wxt-dev/wxt-examples/tree/main/examples/vue-i18n)
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@@ -0,0 +1,16 @@
# Messaging
[Chrome Docs](https://developer.chrome.com/docs/extensions/develop/concepts/messaging) • [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Content_scripts#communicating_with_background_scripts)
Read the docs linked above to learn more about using the vanilla messaging APIs.
## Alternatives
The vanilla APIs are difficult to use and are a pain point to many new extension developers. For this reason, WXT recommends installing an NPM package that wraps around the vanilla APIs.
Here are some popular messaging libraries that support all browsers and work with WXT:
- [`trpc-chrome`](https://www.npmjs.com/package/trpc-chrome) - [tRPC](https://trpc.io/) adapter for Web Extensions.
- [`webext-bridge`](https://www.npmjs.com/package/webext-bridge) - Messaging in WebExtensions made super easy. Out of the box.
- [`@webext-core/messaging`](https://www.npmjs.com/package/@webext-core/messaging) - Light weight, type-safe wrapper around the web extension messaging APIs
- [`@webext-core/proxy-service`](https://www.npmjs.com/package/@webext-core/proxy-service) - A type-safe wrapper around the web extension messaging APIs that lets you call a function from anywhere, but execute it in the background.
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@@ -0,0 +1,101 @@
# Project Structure
WXT follows a strict project structure. By default, it's a flat folder structure that looks like this:
<!-- prettier-ignore -->
```html
📂 {rootDir}/
📁 .output/
📁 .wxt/
📁 assets/
📁 components/
📁 composables/
📁 entrypoints/
📁 hooks/
📁 modules/
📁 public/
📁 utils/
📄 .env
📄 .env.publish
📄 app.config.ts
📄 package.json
📄 tsconfig.json
📄 web-ext.config.ts
📄 wxt.config.ts
```
Here's a brief summary of each of these files and directories:
- `.output/`: All build artifacts will go here
- `.wxt/`: Generated by WXT, it contains TS config
- `assets/`: Contains all CSS, images, and other assets that should be processed by WXT
- `components/`: Auto-imported by default, contains UI components
- `composables/`: Auto-imported by default, contains composable functions for Vue
- `entrypoints/`: Contains all the entrypoints that get bundled into your extension
- `hooks/`: Auto-imported by default, contains hooks for React and Solid
- `public/`: Contains any files you want to copy into the output folder as-is, without being processed by WXT
- `utils/`: Auto-imported by default, contains generic utilities used throughout your project
- `.env`: Contains [Environment Variables](/guide/essentials/config/environment-variables)
- `.env.publish`: Contains Environment Variables for [publishing](/guide/essentials/publishing)
- `app.config.ts`: Contains [Runtime Config](/guide/essentials/config/runtime)
- `package.json`: The standard file used by your package manager
- `tsconfig.json`: Config telling TypeScript how to behave
- `web-ext.config.ts`: Configure [Browser Startup](/guide/essentials/config/browser-startup)
- `wxt.config.ts`: The main config file for WXT projects
## Adding a `src/` Directory
Many developers like having a `src/` directory to separate source code from configuration files. You can enable it inside the `wxt.config.ts` file:
```ts
// wxt.config.ts
export default defineConfig({
srcDir: 'src',
});
```
After enabling it, your project structure should look like this:
<!-- prettier-ignore -->
```html
📂 {rootDir}/
📁 .output/
📁 .wxt/
📂 src/
📁 assets/
📁 components/
📁 composables/
📁 entrypoints/
📁 hooks/
📁 modules/
📁 public/
📁 utils/
📄 app.config.ts
📄 .env
📄 .env.publish
📄 package.json
📄 tsconfig.json
📄 web-ext.config.ts
📄 wxt.config.ts
```
## Customizing Other Directories
You can configure the following directories:
<!-- prettier-ignore -->
```ts
// wxt.config.ts
export default defineConfig({
// Relative to project root
srcDir: "src", // default: "."
outDir: "dist", // default: ".output"
// Relative to srcDir
entrypointsDir: "entries", // default: "entrypoints"
modulesDir: "wxt-modules", // default: "modules"
publicDir: "static", // default: "public"
})
```
You can use absolute or relative paths.
@@ -4,7 +4,7 @@ outline: deep
# Publishing
WXT will help you ZIP your extensions and submit them to the stores for review.
WXT can ZIP your extension and submit it to various stores for review or for self-hosting.
## First Time Publishing
@@ -18,7 +18,7 @@ For specific details about each store, see the stores sections below.
## Automation
WXT provides two commands to help automate the release process:
WXT provides two commands to help automate submitting a new version for review and publishing:
- `wxt submit init`: Setup all the required secrets and options for the `wxt submit` command
- `wxt submit`: Submit new versions of your extension for review (and publish them automatically once approved)
@@ -27,7 +27,7 @@ To get started, run `wxt submit init` and follow the prompts. Once finished, you
> In CI, make sure you add all the environment variables to the submit step.
To release an update, build all the ZIPs you plan on releasing:
To submit a new version for publishing, build all the ZIPs you plan on releasing:
```sh
wxt zip
@@ -36,29 +36,25 @@ wxt zip -b firefox
Then run the `wxt submit` command, passing in all the ZIP files you want to release. In this case, we'll do a release for all 3 major stores: Chrome Web Store, Edge Addons, and Firefox Addons Store.
If it's your first time running the command, you'll want to test your secrets by passing the `--dry-run` flag:
If it's your first time running the command or you recently made changes to the release process, you'll want to test your secrets by passing the `--dry-run` flag.
```sh
wxt submit --dry-run \
--chrome-zip .output/<your-extension>-<version>-chrome.zip \
--firefox-zip .output/<your-extension>-<version>-firefox.zip --firefox-sources-zip .output/<your-extension>-<version>-sources.zip \
--edge-zip .output/<your-extension>-<version>-chrome.zip
--chrome-zip .output/{your-extension}-{version}-chrome.zip \
--firefox-zip .output/{your-extension}-{version}-firefox.zip --firefox-sources-zip .output/{your-extension}-{version}-sources.zip \
--edge-zip .output/{your-extension}-{version}-chrome.zip
```
If the dry run passes, remove the flag and do the actual release:
```sh
wxt submit \
--chrome-zip .output/<your-extension>-<version>-chrome.zip \
--firefox-zip .output/<your-extension>-<version>-firefox.zip --firefox-sources-zip .output/<your-extension>-<version>-sources.zip \
--edge-zip .output/<your-extension>-<version>-chrome.zip
--chrome-zip .output/{your-extension}-{version}-chrome.zip \
--firefox-zip .output/{your-extension}-{version}-firefox.zip --firefox-sources-zip .output/{your-extension}-{version}-sources.zip \
--edge-zip .output/{your-extension}-{version}-chrome.zip
```
:::tip
If you only need to release to a single store, only pass that store's ZIP flag.
:::
:::tip
:::warning
See the [Firefox Addon Store](#firefox-addon-store) section for more details about the `--firefox-sources-zip` option.
:::
@@ -133,9 +129,7 @@ wxt zip
Firefox requires you to upload a ZIP of your source code. This allows them to rebuild your extension and review the code in a readable way. More details can be found in [Firefox's docs](https://extensionworkshop.com/documentation/publish/source-code-submission/).
WXT fully supports generating and automatically submitting a source code ZIP.
When you run `wxt zip -b firefox`, your sources are zipped into the `.output` directory alongside the extension. WXT will automatically exclude certain files such as config files, hidden files, and tests. However, it's important to manually check the ZIP to ensure it only contains the files necessary to rebuild your extension.
When running `wxt zip -b firefox`, WXT will zip both your extension and sources. Certain files (such as config files, hidden files, and tests) are automatically excluded from your sources. However, it's important to manually check the ZIP to ensure it only contains the files necessary to rebuild your extension.
To customize which files are zipped, add the `zip` option to your config file.
@@ -181,7 +175,7 @@ Ensure that you have a `README.md` or `SOURCE_CODE_REVIEW.md` file with the abov
Make sure the build output is the exact same when running `wxt build -b firefox` in your main project and inside the zipped sources.
:::warning
If you use a `.env` files, they can effect the chunk hashes in the output directory. Either delete the .env file before running `wxt zip -b firefox`, or include it in your sources zip with the [`zip.includeSources`](/api/reference/wxt/interfaces/InlineConfig#includesources) option. Be careful to not include any secrets in your `.env` files.
If you use a `.env` files, they can affect the chunk hashes in the output directory. Either delete the .env file before running `wxt zip -b firefox`, or include it in your sources zip with the [`zip.includeSources`](/api/reference/wxt/interfaces/InlineConfig#includesources) option. Be careful to not include any secrets in your `.env` files.
See Issue [#377](https://github.com/wxt-dev/wxt/issues/377) for more details.
:::
@@ -205,7 +199,7 @@ export default defineConfig({
Depending on your package manager, the `package.json` in the sources zip will be modified to use the downloaded dependencies via the `overrides` or `resolutions` field.
:::warning
WXT uses the command `npm pack <package-name>` to download the package. That means regardless of your package manager, you need to properly setup a `.npmrc` file. NPM and PNPM both respect `.npmrc` files, but Yarn and Bun have their own ways of authorizing private registries, so you'll need to add an `.npmrc` file.
WXT uses the command `npm pack <package-name>` to download the package. That means regardless of your package manager, you need to properly setup a `.npmrc` file. NPM and PNPM both respect `.npmrc` files, but Yarn and Bun have their own ways of authorizing private registries, so you'll need to add a `.npmrc` file.
:::
### Safari
@@ -1,12 +1,12 @@
# `browser.scripting`
# Scripting
[Chrome Docs](https://developer.chrome.com/docs/extensions/reference/api/scripting) &bull; [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/scripting)
[Chrome Docs](https://developer.chrome.com/docs/extensions/reference/api/scripting) [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/scripting)
Refer to the browser docs above for basics on how the API works.
## Execute Script Return Values
When using `browser.scripting.executeScript`, you can execute content scripts or unlisted scripts. To return a value, just return a value from the script's main function.
When using `browser.scripting.executeScript`, you can execute content scripts or unlisted scripts. To return a value, just return a value from the script's `main` function.
```ts
// entrypoints/background.ts
@@ -19,7 +19,7 @@ console.log(res); // "Hello John!"
```ts
// entrypoints/injected.js
export default defineContentScript(() => {
export default defineUnlistedScript(() => {
console.log('Script was injected!');
return 'Hello John!';
});
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@@ -0,0 +1,15 @@
# Storage
[Chrome Docs](https://developer.chrome.com/docs/extensions/reference/api/storage) • [Firefox Docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/storage)
You can use the vanilla APIs (see docs above), use [WXT's built-in storage API](/storage), or install a package from NPM.
## Alternatives
1. [`wxt/storage`](/storage) (recommended): WXT ships with its own wrapper around the vanilla storage APIs that simplifies common use cases
2. DIY: If you're migrating to WXT and already have a storage wrapper, keep using it. In the future, if you want to delete that code, you can use one of these alternatives, but there's no reason to replace working code during a migration.
3. Any other NPM package: [There are lots of wrappers around the storage API](https://www.npmjs.com/search?q=chrome%20storage), you can find one you like. Here's some popular ones:
- [`webext-storage`](https://www.npmjs.com/package/webext-storage) - A more usable typed storage API for Web Extensions
- [`@webext-core/storage`](https://www.npmjs.com/package/@webext-core/storage) - A type-safe, localStorage-esque wrapper around the web extension storage APIs
@@ -0,0 +1,77 @@
# Targeting Different Browsers
When building an extension with WXT, you can create multiple builds of your extension targeting different browsers and manifest versions.
## Target a Browser
Use the `-b` CLI flag to create a separate build of your extension for a specific browser. By default, `chrome` is targeted.
```sh
wxt # same as: wxt -b chrome
wxt -b firefox
wxt -b custom
```
During development, if you target Firefox, Firefox will open. All other strings open Chrome by default. To customize which browsers open, see [Set Browser Binaries](/guide/essentials/config/browser-startup#set-browser-binaries).
Additionally, WXT defines several constants you can use at runtime to detect which browser is in use:
```ts
if (import.meta.env.BROWSER === 'firefox') {
console.log('Do something only in Firefox builds');
}
if (import.meta.env.FIREFOX) {
// Shorthand, equivalent to the if-statement above
}
```
Read about [Built-in Environment Variables](/guide/essentials/config/environment-variables.html#built-in-environment-variables) for more details.
## Target a Manifest Version
To target specific manifest versions, use the `--mv2` or `--mv3` CLI flags.
:::tip Default Manifest Version
By default, WXT will target MV2 for Safari and Firefox and MV3 for all other browsers.
:::
Similar to the browser, you can get the target manifest version at runtime using the [built-in environment variable](/guide/essentials/config/environment-variables.html#built-in-environment-variables):
```ts
if (import.meta.env.MANIFEST_VERSION === 2) {
console.log('Do something only in MV2 builds');
}
```
## Filtering Entrypoints
Every entrypoint can be included or excluded when targeting specific browsers via the `include` and `exclude` options.
Here are some examples:
- Content script only built when targeting `firefox`:
```ts
export default defineContentScript({
include: ['firefox'],
main(ctx) {
// ...
},
});
```
- HTML file only built for all targets other than `chrome`:
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="manifest.exclude" content="['chrome', ...]" />
</head>
<body>
<!-- ... -->
</body>
</html>
```
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@@ -0,0 +1,28 @@
# Testing Updates
## Testing Permission Changes
When `permissions`/`host_permissions` change during an update, depending on what exactly changed, the browser will disable your extension until the user accepts the new permissions.
You can test if your permission changes will result in a disabled extension:
- Chromium: Use [Google's Extension Update Testing tool](https://github.com/GoogleChromeLabs/extension-update-testing-tool)
- Firefox: See their [Test Permission Requests](https://extensionworkshop.com/documentation/develop/test-permission-requests/) page
- Safari: Everyone breaks something in production eventually... 🫡 Good luck soldier
## Update Event
You can setup a callback that runs after your extension updates like so:
```ts
browser.runtime.onInstalled.addListener(({ reason }) => {
if (reason === 'update') {
// Do something
}
});
```
If the logic is simple, write a unit test to cover this logic. If you feel the need to manually test this callback, you can either:
1. In dev mode, remove the `if` statement and reload the extension from `chrome://extensions`
2. Use [Google's Extension Update Testing tool](https://github.com/GoogleChromeLabs/extension-update-testing-tool)
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@@ -0,0 +1,80 @@
# Unit Testing
[[toc]]
## Vitest
WXT provides first class support for Vitest for unit testing:
```ts
// vitest.config.ts
import { defineConfig } from 'vitest/config';
import { WxtVitest } from 'wxt/testing';
export default defineConfig({
plugins: [WxtVitest()],
});
```
This plugin does several things:
- Polyfills the extension API, `browser`, with an in-memory implementation using [`@webext-core/fake-browser`](https://webext-core.aklinker1.io/fake-browser/installation)
- Adds all vite config or plugins in `wxt.config.ts`
- Configures auto-imports (if enabled)
- Applies internal WXT vite plugins for things like [bundling remote code](/guide/essentials/remote-code)
- Sets up global variables provided by WXT (`import.meta.env.BROWSER`, `import.meta.env.MANIFEST_VERSION`, `import.meta.env.IS_CHROME`, etc)
- Configures aliases (`@/*`, `@@/*`, etc) so imports can be resolved
Here are real projects with unit testing setup. Look at the code and tests to see how they're written.
- [`aklinker1/github-better-line-counts`](https://github.com/aklinker1/github-better-line-counts)
- [`wxt-dev/examples`'s Vitest Example](https://github.com/wxt-dev/examples/tree/main/examples/vitest-unit-testing)
### Example Tests
This example demonstrates that you don't have to mock `browser.storage` (used by `wxt/storage`) in tests - [`@webext-core/fake-browser`](https://webext-core.aklinker1.io/fake-browser/installation) implements storage in-memory so it behaves like it would in a real extension!
```ts
import { describe, it, expect } from 'vitest';
import { fakeBrowser } from 'wxt/testing';
const accountStorage = storage.defineItem<Account>('local:account');
async function isLoggedIn(): Promise<Account> {
const value = await accountStorage.getValue();
return value != null;
}
describe('isLoggedIn', () => {
beforeEach(() => {
// See https://webext-core.aklinker1.io/fake-browser/reseting-state
fakeBrowser.reset();
});
it('should return true when the account exists in storage', async () => {
const account: Account = {
username: '...',
preferences: {
// ...
},
};
await accountStorage.setValue(account);
expect(await isLoggedIn()).toBe(true);
});
it('should return false when the account does not exist in storage', async () => {
await accountStorage.deleteValue();
expect(await isLoggedIn()).toBe(false);
});
});
```
## Other Testing Frameworks
To use a different framework, you will likely have to disable auto-imports, setup import aliases, manually mock the extension APIs, and setup the test environment to support all of WXT's features that you use.
It is possible to do, but will require a bit more setup. Refer to Vitest's setup for an example of how to setup a test environment:
https://github.com/wxt-dev/wxt/blob/main/packages/wxt/src/testing/wxt-vitest-plugin.ts
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# WXT Modules
WXT provides a "module system" that let's you run code at different steps in the build process to modify it.
[[toc]]
## Adding a Module
There are two ways to add a module to your project:
1. **NPM**: install an NPM package, like [`@wxt-dev/auto-icons`](https://www.npmjs.com/package/@wxt-dev/auto-icons) and add it to your config:
```ts
// wxt.config.ts
export default defineConfig({
modules: ['@wxt-dev/auto-icons'],
});
```
> Searching for ["wxt module"](https://www.npmjs.com/search?q=wxt%20module) on NPM is a good way to find published WXT modules.
2. **Local**: add a file to your project's `modules/` directory:
```
<srcDir>/
modules/
my-module.ts
```
> To learn more about writing your own modules, read the [Writing Modules](/guide/essentials/wxt-modules) docs.
## Module Options
WXT modules may require or allow setting custom options to change their behavior. There are two types of options:
1. **Build-time**: Any config used during the build process, like feature flags
2. **Runtime**: Any config accessed at runtime, like callback functions
Build-time options are placed in your `wxt.config.ts`, while runtime options is placed in the [`app.config.ts` file](/guide/essentials/config/runtime). Refer to each module's documentation about what options are required and where they should be placed.
If you use TypeScript, modules augment WXT's types so you will get type errors if options are missing or incorrect.
## Execution Order
Modules are loaded in the same order as hooks are executed. Refer to the [Hooks documentation](/guide/essentials/config/hooks#execution-order) for more details.
## Writing Modules
Here's what a basic WXT module looks like:
```ts
import { defineWxtModule } from 'wxt/modules';
export default defineWxtModule({
setup(wxt) {
// Your module code here...
},
});
```
Each module's setup function is executed after the `wxt.config.ts` file is loaded. The `wxt` object provides everything you need to write a module:
- Use `wxt.hook(...)` to hook into the build's lifecycle and make changes
- Use `wxt.config` to get the resolved config from the project's `wxt.config.ts` file
- Use `wxt.logger` to log messages to the console
- and more!
Refer to the [API reference](/api/reference/wxt/interfaces/Wxt) for a complete list of properties and functions available.
Also to make sure and read about all the [hooks that are available](https://wxt.dev/api/reference/wxt/interfaces/WxtHooks) - they are essential to writing modules.
### Recipes
Modules are complex and require a deeper understanding of WXT's code and how it works. The best way to learn is by example.
#### Update resolved config
```ts
import { defineWxtModule } from 'wxt/modules';
export default defineWxtModule({
setup(wxt) {
wxt.hook('ready', () => {
wxt.config.outDir = 'dist';
});
},
});
```
#### Add built-time config
```ts
import { defineWxtModule } from 'wxt/modules';
import 'wxt';
export interface MyModuleOptions {
// Add your build-time options here...
}
declare module 'wxt' {
export interface InlineConfig {
// Add types for the "myModule" key in wxt.config.ts
myModule: MyModuleOptions;
}
}
export default defineWxtModule<AnalyticModuleOptions>({
configKey: 'myModule',
// Build time config is available via the second argument of setup
setup(wxt, options) {
console.log(options);
},
});
```
#### Add runtime config
```ts
import { defineWxtModule } from 'wxt/modules';
import 'wxt/sandbox';
export interface MyModuleRuntimeOptions {
// Add your runtime options here...
}
declare module 'wxt/sandbox' {
export interface WxtAppConfig {
myModule: MyModuleOptions;
}
}
```
Runtime options are returned when calling
```ts
const config = useAppConfig();
console.log(config.myModule);
```
This is very useful when [generating runtime code](#generate-runtime-module).
#### Generate output file
```ts
import { defineWxtModule } from 'wxt/modules';
export default defineWxtModule({
setup(wxt) {
// Relative to the output directory
const generatedFilePath = 'some-file.txt';
wxt.hook('build:publicAssets', (_, assets) => {
assets.push({
relativeDest: generatedFilePath,
contents: 'some generated text',
});
});
wxt.hook('build:manifestGenerated', (_, manifest) => {
manifest.web_accessible_resources ??= [];
manifest.web_accessible_resources.push({
matches: ['*://*'],
resources: [generatedFilePath],
});
});
},
});
```
This file could then be loaded at runtime:
```ts
const res = await fetch(browser.runtime.getURL('/some-text.txt'));
```
#### Generate runtime module
Create a file in `.wxt`, add an alias to import it, and add auto-imports for exported variables.
```ts
import { defineWxtModule } from 'wxt/modules';
import { resolve } from 'node:path';
export default defineWxtModule({
imports: [
// Add auto-imports
{ from: '#analytics', name: 'analytics' },
{ from: '#analytics', name: 'reportEvent' },
{ from: '#analytics', name: 'reportPageView' },
],
setup(wxt) {
const analyticsModulePath = resolve(
wxt.config.wxtDir,
'analytics/index.ts',
);
const analyticsModuleCode = `
import { createAnalytics } from 'some-module';
export const analytics = createAnalytics(useAppConfig().analytics);
export const { reportEvent, reportPageView } = analytics;
`;
addAlias(wxt, '#analytics', analyticsModulePath);
wxt.hook('prepare:types', async (_, entries) => {
entries.push({
path: analyticsModulePath,
text: analyticsModuleCode,
});
});
},
});
```
#### Generate declaration file
```ts
import { defineWxtModule } from 'wxt/modules';
import { resolve } from 'node:path';
export default defineWxtModule({
setup(wxt) {
const typesPath = resolve(wxt.config.wxtDir, 'my-module/types.d.ts');
const typesCode = `
// Declare global types, perform type augmentation
`;
wxt.hook('prepare:types', async (_, entries) => {
entries.push({
path: 'my-module/types.d.ts',
text: `
// Declare global types, perform type augmentation, etc
`,
// IMPORTANT - without this line your declaration file will not be a part of the TS project:
tsReference: true,
});
});
},
});
```
### Example Modules
You should also look through the code of modules other people have written and published. Here's some examples:
- [`@wxt-dev/auto-icons`](https://github.com/wxt-dev/wxt/blob/main/packages/auto-icons)
- [`@wxt-dev/i18n`](https://github.com/wxt-dev/wxt/blob/main/packages/i18n)
- [`@wxt-dev/module-vue`](https://github.com/wxt-dev/wxt/blob/main/packages/module-vue)
- [`@wxt-dev/module-solid`](https://github.com/wxt-dev/wxt/blob/main/packages/module-solid)
- [`@wxt-dev/module-react`](https://github.com/wxt-dev/wxt/blob/main/packages/module-react)
- [`@wxt-dev/module-svelte`](https://github.com/wxt-dev/wxt/blob/main/packages/module-svelte)
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# Messaging
## Overview
Follow [Chrome's message passing guide](https://developer.chrome.com/docs/extensions/mv3/messaging/) to understand how message passing works in web extensions. In Google's examples, just replace `chrome` with `browser`, and it will work in WXT.
Here's a basic request/response example:
```ts
// popup/main.ts
const res = await browser.runtime.sendMessage('ping');
console.log(res); // "pong"
```
```ts
// background.ts
export default defineBackground(() => {
browser.runtime.onMessage.addListener((message, sender, sendResponse) => {
console.log(message); // "ping"
// Wait 1 second and respond with "pong"
setTimeout(() => sendResponse('pong'), 1000);
return true;
});
});
```
## Third Party Libraries
There are a number of message passing libraries you can use to improve the message passing experience.
- [`@webext-core/messaging`](https://webext-core.aklinker1.io/guide/messaging/) - "A light-weight, type-safe wrapper around the `browser.runtime` messaging APIs"
- [`@webext-core/proxy-service`](https://webext-core.aklinker1.io/guide/proxy-service/) - "Create RPC-like services that can be called from anywhere but run in the background"
- [`webext-bridge`](https://github.com/zikaari/webext-bridge) - "Messaging in Web Extensions made super easy. Out of the box."
- [`trpc-chrome`](https://www.npmjs.com/package/trpc-chrome) - "tRPC adapter for Web Extensions 🧩"
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# All Other APIs
:::warning 🚧 Under construction
These docs will be coming soon!
:::
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@@ -1,5 +0,0 @@
# Custom Events
:::warning 🚧 Under construction
These docs will be coming soon!
:::
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# Debugging
:::warning 🚧 Under construction
These docs will be coming soon!
:::
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# Entrypoint Loaders
Because entrypoint options, like content script `matches`, are listed in the entrypoint's JS file, WXT has to import them during the build process to use those options when generating the manifest.
There are two options for loading your entrypoints:
1. `vite-node` - default as of `v0.19.0`
2. `jiti` (**DEPRECATED, will be removed in `v0.20.0`**) - Default before `v0.19.0`
## vite-node
Since 0.19.0, WXT uses `vite-node`, the same tool that powers Vitest and Nuxt, to import your entrypoint files.
If you use any runtime packages that depend on `webextension-polyfill`, you need to add them to [Vite's `ssr.noExternal` option](https://vitejs.dev/config/ssr-options#ssr-noexternal):
```ts
export default defineConfig({
vite: () => ({
ssr: {
noExternal: ['@webext-core/messaging', '@webext-core/proxy-service'],
},
}),
});
```
:::details Why?
This tells Vite it needs process these module's, letting WXT properly disable the polyfill in the NodeJS environment so it doesn't cause any build errors like this:
```
ERROR This script should only be loaded in a browser extension
```
:::
To get a list of installed packages that use on `webextension-polyfill`, run your package manager's `list` command. Here's an example with PNPM:
```sh
$ pnpm why webextension-polyfill
dependencies:
@webext-core/messaging 1.4.0
└── webextension-polyfill 0.10.0
@webext-core/proxy-service 1.2.0
├─┬ @webext-core/messaging 1.4.0 peer
│ └── webextension-polyfill 0.10.0
└── webextension-polyfill 0.12.0 peer
devDependencies:
@wxt-dev/module-vue 1.0.0
└─┬ wxt 0.19.0-alpha1 peer
└── webextension-polyfill 0.12.0
webextension-polyfill 0.12.0
wxt 0.19.0-alpha1
└── webextension-polyfill 0.12.0
```
Ignoring WXT itself (it's added automatically for you), there are three packages that depend on the polyfill: `@wxt-dev/module-vue`, `@webext-core/messaging`, and `@webext-core/proxy-service`. Since the vue module is a build dependency, with no runtime code, you don't have to add it. That means for this case, you need to add `@webext-core/messaging`, and `@webext-core/proxy-service`, as shown in the original code snippet.
## jiti
The original method WXT used to import TS files. However, because it doesn't support vite plugins like `vite-node`, there is one main caveot to it's usage: **_module side-effects_**.
To enable `jiti`:
```ts
export default defineConfig({
entrypointLoader: 'jiti',
});
```
You cannot use imported variables outside the `main` function in JS entrypoints. This includes options, as shown below:
```ts
// entrypoints/content.ts
import { GOOGLE_MATCHES } from '~/utils/match-patterns';
export default defineContentScript({
matches: GOOGLE_MATCHES,
main() {
// ...
},
});
```
```
$ wxt build
wxt build
WXT 0.14.1
Building chrome-mv3 for production with Vite 5.0.5
✖ Command failed after 360 ms
[8:55:54 AM] ERROR entrypoints/content.ts: Cannot use imported variable "GOOGLE_MATCHES" before main function. See https://wxt.dev/guide/entrypoints.html#side-effects
```
This throws an error because WXT needs to import each entrypoint during the build process to extract its definition (containing the `match`, `runAt`, `include`/`exclude`, etc.) to render the `manifest.json` correctly. Before loading an entrypoint, a transformation is applied to remove all imports. This prevents imported modules (local or NPM) with side-effects from running during the build process, potentially throwing an error.
:::details Why?
When importing your entrypoint to get its definition, the file is imported in a **_node environment_**, and doesn't have access to the `window`, `chrome`, or `browser` globals a web extension usually has access to. If WXT doesn't remove all the imports from the file, the imported modules could try and access one of these variables, throwing an error.
:::
:::warning
See [`wxt-dev/wxt#336`](https://github.com/wxt-dev/wxt/issues/336) to track the status of this bug.
:::
Usually, this error occurs when you try to extract options into a shared file or try to run code outside the `main` function. To fix the example from above, use literal values when defining an entrypoint instead of importing them:
```ts
import { GOOGLE_MATCHES } from '~/utils/match-patterns'; // [!code --]
export default defineContentScript({
matches: GOOGLE_MATCHES, // [!code --]
matches: ['*//*.google.com/*'], // [!code ++]
main() {
// ...
},
});
```
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# ES Modules
Configure entrypoints to use ESM at runtime.
Currently, ESM entrypoints are opt-in, so you must configure each entrypoint with that in mind.
## HTML Pages <Badge type="warning" text="≥0.0.1" />
In general, you should always make HTML pages import ESM scripts, unless you need to support old browsers.
To make a script ESM, add `type="module"`:
<!-- prettier-ignore -->
```html
<script src="./main.ts"></script> <!-- [!code --] -->
<script src="./main.ts" type="module"></script> <!-- [!code ++] -->
```
## Background <Badge type="warning" text="≥0.16.0" />
In your background script, set `type: "module"`:
```ts
export default defineBackground({
type: 'module', // !code ++
main() {
// ...
},
});
```
:::warning
Only MV3 support ESM background scripts/service workers. When targeting MV2, the `type` option is ignored and the background is always bundled into a single file as IIFE.
:::
## Content Scripts
WXT does not include built-in support for ESM content scripts. There are several technical issues that make implementing a generic solution impossible. See [Content Script ESM Support #357](https://github.com/wxt-dev/wxt/issues/357) for details.
Instead, depending on your requirements, you can implement ESM support manually. See the [ESM Content Script UI](https://github.com/wxt-dev/examples/tree/main/examples/esm-content-script-ui) example to get started.
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# Handling Extension Updates
When releasing an update to your extension, there's a couple of things you need to keep in mind:
[[toc]]
## Content Script Cleanup
Old content scripts are not automatically stopped when an extension updates and reloads. Often, this leads to "Invalidated context" errors in production when a content script from an old version of your extension tries to use an extension API.
WXT provides a utility for handling this process: `ContentScriptContext`. An instance of this class is provided to you automatically inside the `main` function of each content script.
When your extension updates or reloads, the context will become invalidated, and will trigger any `ctx.onInvalidated` listeners you add:
```ts
export default defineContentScript({
main(ctx) {
ctx.onInvalidated(() => {
// Do something
});
},
)
```
The `ctx` also provides other convenient APIs for stopping your content script without manually calling `onInvalidated` to add a listener:
1. Setting timers:
```ts
ctx.setTimeout(() => { ... }, ...);
ctx.setInterval(() => { ... }, ...);
ctx.requestAnimationFrame(() => { ... });
```
1. Adding DOM events:
```ts
ctx.addEventListener(window, "mousemove", (event) => { ... });
```
1. Implements [`AbortController`](https://developer.mozilla.org/en-US/docs/Web/API/AbortController) for canceling standard APIs:
```ts
fetch('...', {
signal: ctx.signal,
});
```
Other WXT APIs require a `ctx` object so they can clean themselves up. For example, [`createIntegratedUi`](/guide/key-concepts/content-script-ui#integrated), [`createShadowRootUi`](/guide/key-concepts/content-script-ui#shadow-root), and [`createIframeUi`](/guide/key-concepts/content-script-ui#iframe) automatically unmount and stop a UI when the script is invalidated.
:::warning
When working with content scripts, **you should always use the `ctx` object to stop any async or future work.**
This prevents old content scripts from interfering with new content scripts, and prevents error messages from being logged to the console in production.
:::
## Testing Permission Changes
When `permissions`/`host_permissions` change during an update, depending on what exactly changed, the browser will disable your extension until the user accepts the new permissions.
You can test if your permission changes will result in a disabled extension:
- Chromium: Use [Google's Extension Update Testing tool](https://github.com/GoogleChromeLabs/extension-update-testing-tool)
- Firefox/Safari: Everyone breaks something in production eventually... 🫡 Good luck soldier
## Update Event
You can setup a callback that runs after your extension updates like so:
```ts
browser.runtime.onInstalled.addListener(({ reason }) => {
if (reason === 'update') {
// Do something
}
});
```
If the logic is simple, write a unit test to cover this logic. If you feel the need to manually test this callback, you can either:
1. In dev mode, remove the `if` statement and reload the extension from `chrome://extensions`
2. Use [Google's Extension Update Testing tool](https://github.com/GoogleChromeLabs/extension-update-testing-tool)
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---
outline: deep
---
# Reusable Modules
## Overview
WXT provides a "module" API that lets you modify the build process. This API lets you add entrypoints, inject runtime code, add vite plugins, and more!
What's more, these modules can be shared on NPM and re-used between projects!
## Adding a Module
There are two ways to add a module to your project:
1. **Local file**: Any file present in the `modules/` directory will be treated as a module and loaded at build-time by WXT. You can use `modules/*.ts` or `modules/*/index.ts`, similar to entrypoints.
```ts
// modules/example.ts
import { defineWxtModule } from 'wxt/modules';
export default defineWxtModule((wxt) => {
// ...
});
```
2. **NPM package**: Find WXT modules on NPM and include them in your project:
```ts
// wxt.config.ts
export default defineConfig({
// Add the module to your project
modules: ['@wxt-dev/auto-icons'],
});
```
## Writing Modules
Modules contain a setup function that is executed at the beginning of the build process.
:::code-group
```ts [Function Definition]
import { defineWxtModule } from 'wxt/modules';
export default defineWxtModule((wxt) => {
// ...
});
```
```ts [Object Definition]
import { defineWxtModule } from 'wxt/modules';
export default defineWxtModule({
// Add metadata...
setup(wxt) {
// ...
},
});
```
:::
### Module Options
You can define custom options for your module by setting the `configKey`:
```ts
// modules/analytics.ts
import { defineWxtModule } from 'wxt/modules';
export default defineWxtModule<AnalyticsModuleOptions>({
configKey: 'analytics',
setup(wxt, options) {
console.log(options); // { clientId: "..." }
},
});
// Define the option types
export interface AnalyticsModuleOptions {
clientId: string;
}
// Use "module augmentation" to add types for the new key
declare module 'wxt' {
export interface InlineConfig {
analytics: AnalyticsModuleOptions;
}
}
```
Now, when the user provides options to the `analytics` key in their `wxt.config.ts`, those options are passed into the setup function as the second argument.
```ts
export default defineConfig({
analytics: { clientId: '...' },
});
```
### Actually Doing Something
The first argument of the setup function, `wxt`, provides full access to the current build's context. You can access the resolved configuration via `wxt.config`, or setup hooks to manipulate the build at different steps of the build process with `wxt.hooks`.
Here's an example that updates the `outDir` based on the build mode. It's a very simple example of how to access config and setup a hook.
```ts
export default defineWxtModule((wxt) => {
if (wxt.config.mode === 'development') {
// Use the "ready" hook to update wxt.config
wxt.hooks.hook('ready', (wxt) => {
wxt.config.outDir = wxt.config.outDir.replace('.output', '.output/dev');
});
}
});
```
:::info Async Modules
Both the `setup` function and hook callbacks can be async. Don't forget to add `await`!
:::
It's important to understand the basics of how hooks work. Make sure to read the [API reference](/api/reference/wxt/interfaces/WxtHooks.html) for the full list of hooks and what they should be used for. They are the key to modifying your extension.
### Module Utils
Additionally, WXT provides several helper functions that setup hooks behind the scenes to streamline common operations.
For example, if you want to include an entrypoint from inside a module, you can use the `addEntrypoint` util:
```ts
// modules/changelog.ts
import { defineWxtModule, addEntrypoint } from 'wxt/modules';
import { resolve } from 'node:path';
export default defineWxtModule({
name: 'changelog',
setup(wxt) {
addEntrypoint(wxt, {
type: 'unlisted-page',
name: 'changelog',
// Point to the "modules/changelog.html" file
inputPath: resolve(__dirname, 'changelog.html'),
outputDir: wxt.config.outputDir,
options: {},
});
},
});
```
Refer to the [API reference](/api/reference/wxt/modules/#functions) for the full list of the utilities.
## Plugins
Whereas modules are executed at build-time, plugins are executed at runtime. As of now, the only way to add a plugin is with the `addWxtPlugin` helper inside a module.
Here's a minimal example to execute something at runtime.
:::code-group
```ts [modules/example/index.ts]
import { defineWxtModule, addWxtPlugin } from 'wxt/modules';
import { resolve } from 'node:path';
export default defineWxtModule((wxt) => {
addWxtPlugin(wxt, resolve(__dirname, 'plugin.ts'));
});
```
```ts [modules/example/plugin.ts]
import { defineWxtPlugin } from 'wxt/sandbox';
export default defineWxtPlugin(() => {
console.log('Executing plugin!');
});
```
:::
:::warning Async Plugins
Unlike modules, **_plugins cannot be async_**!! If you need to do some async work and expose that result to the rest of the extension, store the result's promise synchronously and await it later on.
:::
## Publishing to NPM
:::warning 🚧 Under construction
These docs will be coming soon!
:::
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# Testing
## Official Frameworks
WXT officially supports [Vitest](https://vitest.dev/) for unit tests and either [Playwright](https://playwright.dev/) or [Puppeteer](https://pptr.dev/) for E2E tests against Chromium browsers.
For details setting up each testing framework, see the official examples:
- [Vitest](https://github.com/wxt-dev/wxt-examples/tree/main/examples/vanilla-vitest#readme)
- [Playwright](https://github.com/wxt-dev/wxt-examples/tree/main/examples/vanilla-playwright#readme)
- [Puppeteer](https://github.com/wxt-dev/wxt-examples/tree/main/examples/vanilla-puppeteer#readme)
### Unofficial Frameworks
Puppeteer and Playwright are the only E2E test runners that support Chrome Extensions. There are no other options at the time of writing.
There are other options for unit tests however, like [Jest](https://jestjs.io/), [Mocha](https://mochajs.org/), or [`node:test`](https://nodejs.org/api/test.html). **_WXT does not claim to support any of them_** because none of them support all of WXT's features, like TypeScript or auto-imports.
If you want to try to use a different framework for unit tests, you will need to configure the environment manually:
- **Auto-imports**: Add `unimport` to your test environment or disable them by setting `imports: false` in your `wxt.config.ts` file
- **`browser` mock**: Mock the `webextension-polyfill` module globally with `wxt/dist/virtual/mock-browser.mjs`
- **[Remote Code Bundling](/guide/go-further/remote-code)**: If you use it, configure your environment to handle the `url:` module prefix
- **Global Variables**: If you consume them, manually define globals provided by WXT (like `import.meta.env.BROWSER`) by adding them to the global scope before accessing them (`import.meta.env.BROWSER = "chrome"`)
- **Import paths**: If you use the `@/` or `~/` path aliases, add them to your test environment
[Here's how Vitest is configured](https://github.com/wxt-dev/wxt/blob/main/packages/wxt/src/testing/wxt-vitest-plugin.ts) for reference.
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# Vite
Under the hood, WXT uses Vite to bundle your web extension.
## Basic Vite Configuration
All of Vite's config can be customized by setting the `vite` configuration in your `wxt.config.ts` file.
```ts
import { defineConfig } from 'wxt';
export default defineConfig({
vite: () => ({
// Same as `defineConfig({ ... })` inside vite.config.ts
}),
});
```
## Using Plugins
Plugins can be passed into the `vite` configuration in your `wxt.config.ts` file, just like any other option.
```ts
import { defineConfig } from 'wxt';
export default defineConfig({
vite: () => ({
plugins: [
// ...
],
}),
});
```
:::warning UNEXPECTED BEHAVIOR
Due to the way WXT orchestrates Vite builds, some plugins may not work as expected. Search [GitHub issues](https://github.com/wxt-dev/wxt/issues?q=is%3Aissue+label%3A%22vite+plugin%22) if you run into issues with a specific plugin.
If one doesn't exist, please open a [new issue](https://github.com/wxt-dev/wxt/issues/new/choose)!
:::
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# Installation
Bootstrap a new project, start from scratch, or [migrate an existing project](/guide/resources/migrate).
[[toc]]
## Bootstrap Project
Run the [`init` command](/api/cli/wxt-init), and follow the instructions.
:::code-group
```sh [PNPM]
pnpm dlx wxt@latest init
```
```sh [Bun]
bunx wxt@latest init
```
```sh [NPM]
npx wxt@latest init
```
```sh [Yarn]
# Use NPM initially, but select Yarn when prompted
npx wxt@latest init
```
:::
:::info Starter Templates:
[<Icon name="TypeScript" style="margin-left: 16px;" />Vanilla](https://github.com/wxt-dev/wxt/tree/main/templates/vanilla)<br/>[<Icon name="Vue" style="margin-left: 16px;" />Vue](https://github.com/wxt-dev/wxt/tree/main/templates/vue)<br/>[<Icon name="React" style="margin-left: 16px;" />React](https://github.com/wxt-dev/wxt/tree/main/templates/react)<br/>[<Icon name="Svelte" style="margin-left: 16px;" />Svelte](https://github.com/wxt-dev/wxt/tree/main/templates/svelte)<br/>[<Icon name="Solid" icon="https://www.solidjs.com/img/favicons/favicon-32x32.png" style="margin-left: 16px;" />Solid](https://github.com/wxt-dev/wxt/tree/main/templates/solid)
<small style="opacity: 50%">All templates use TypeScript by default. To use JavaScript, change the file extensions.</small>
:::
### Demo
![wxt init demo](/assets/init-demo.gif)
Once you've run the `dev` command, continue to [Next Steps](#next-steps)!
## From Scratch
1. Create a new project
:::code-group
```sh [PNPM]
cd my-project
pnpm init
```
```sh [Bun]
cd my-project
bun init
```
```sh [NPM]
cd my-project
npm init
```
```sh [Yarn]
cd my-project
yarn init
```
:::
2. Install WXT:
:::code-group
```sh [PNPM]
pnpm i -D wxt
```
```sh [Bun]
bun i -D wxt
```
```sh [NPM]
npm i -D wxt
```
```sh [Yarn]
yarn add --dev wxt
```
:::
3. Add an entrypoint, `my-project/entrypoints/background.ts`:
:::code-group
```ts
export default defineBackground(() => {
console.log('Hello world!');
});
```
:::
4. Add scripts to your `package.json`:
```json
{
"scripts": {
"dev": "wxt", // [!code ++]
"dev:firefox": "wxt -b firefox", // [!code ++]
"build": "wxt build", // [!code ++]
"build:firefox": "wxt build -b firefox", // [!code ++]
"zip": "wxt zip", // [!code ++]
"zip:firefox": "wxt zip -b firefox", // [!code ++]
"postinstall": "wxt prepare" // [!code ++]
}
}
```
5. Run your extension in dev mode
:::code-group
```sh [PNPM]
pnpm dev
```
```sh [Bun]
bun run dev
```
```sh [NPM]
npm run dev
```
```sh [Yarn]
yarn dev
```
:::
WXT will automatically open a browser window with your extension installed.
## Next Steps
- Keep reading on about WXT's [Project Structure](/guide/essentials/project-structure) and other essential concepts to learn
- Configure [automatic browser startup](/guide/essentials/config/browser-startup) during dev mode
- Explore [WXT's example library](/examples) to see how to use specific APIs or perform common tasks
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# Welcome to WXT!
WXT is a modern, open-source framework for building web extensions. Inspired by Nuxt, its goals are to:
- Provide an awesome [DX](https://about.gitlab.com/topics/devops/what-is-developer-experience/)
- Provide first-class support for all major browsers
Check out the [comparison](/guide/resources/compare) to see how WXT compares to other tools for building web extnesions.
## Prerequisites
These docs assume you have a basic knowledge of how Chrome extensions are structured and how you access the extension APIs.
:::warning New to extension development?
If you have never written an extension before, follow Chrome's [Hello World tutorial](https://developer.chrome.com/docs/extensions/get-started/tutorial/hello-world) to first **_create an extension without WXT_**, then come back here.
:::
You should also be aware of [Chrome's extension docs](https://developer.chrome.com/docs/extensions) and [Mozilla's extension docs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions). WXT does not change how you use the extension APIs, and you'll need to refer to these docs often when using specific APIs.
<br/>
---
<br/>
Alright, got a basic understanding of how web extensions are structured? Do you know how to access the extension APIs? Then continue to the [Installation page](/guide/installation) to create your first WXT extension.
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# Auto-imports
WXT uses the same tool as Nuxt for auto-imports, [`unimport`](https://github.com/unjs/unimport).
## WXT Auto-imports
Some WXT APIs can be used without importing them:
- [`browser`](/api/reference/wxt/browser/variables/browser) from `wxt/browser`, a small wrapper around `webextension-polyfill`
- [`defineContentScript`](/api/reference/wxt/sandbox/functions/defineContentScript) from `wxt/sandbox`
- [`defineBackground`](/api/reference/wxt/sandbox/functions/defineBackground) from `wxt/sandbox`
- [`defineUnlistedScript`](/api/reference/wxt/sandbox/functions/defineUnlistedScript) from `wxt/sandbox`
- [`createIntegratedUi`](/api/reference/wxt/client/functions/createIntegratedUi) from `wxt/client`
- [`createShadowRootUi`](/api/reference/wxt/client/functions/createShadowRootUi) from `wxt/client`
- [`createIframeUi`](/api/reference/wxt/client/functions/createIframeUi) from `wxt/client`
- [`fakeBrowser`](/api/reference/wxt/testing/variables/fakeBrowser) from `wxt/testing`
And more!
## Project Auto-imports
In addition WXT APIs, default and named exports from inside the following directories can be used without listing them in imports.
- `<srcDir>/components/*`
- `<srcDir>/composables/*`
- `<srcDir>/hooks/*`
- `<srcDir>/utils/*`
To add auto-imports from subdirectories, like `utils/api/some-file.ts`, re-export them from the base directory:
```ts
// utils/index.ts
export * from './api/some-file.ts';
```
Alternatively, you could add the directory to the list of auto-import directories in your config file.
## TypeScript
For TypeScript to work, you need to run the `wxt prepare` command. This will ensure types are generated for auto-imports.
This should be added to your `postinstall` script so your editor has everything it needs to report type errors after installing dependencies:
```json
// package.json
{
"scripts": {
"postinstall": "wxt prepare" // [!code ++]
}
}
```
## Customization
You can override the default auto-import behavior in your `wxt.config.ts` file.
See [`unimport`'s documentation](https://github.com/unjs/unimport#configurations) for a complete list of options.
```ts
import { defineConfig } from 'wxt';
export default defineConfig({
imports: {
// Add auto-imports for vue functions like createApp, ref, computed, watch, toRaw, etc...
presets: ['vue'],
},
});
```
## Disabling Auto-imports
To disable auto-imports, set `imports: false`
```ts
export default defineConfig({
imports: false,
});
```
## ESLint
ESLint doesn't know about the auto-imported variables unless they are explicitly defined in the `globals` config. By default, WXT will generate the config if it detects ESLint is installed in your project. If the config isn't generated automatically, you can manually tell WXT to generate it.
```ts
// wxt.config.ts
export default defineConfig({
imports: {
eslintrc: {
enabled: 8, // Generate ESLint v8 compatible config
// or
enabled: 9, // Generate ESLint v9 compatible config
},
},
});
```
### ESLint 9 and above
WXT supports the "flat config" file format introduced in ESLint 9. Just import the generated file and add it to the array of config to extend.
```js
// eslint.config.mjs
import autoImports from './.wxt/eslint-auto-imports.mjs';
export default [autoImports];
```
### ESLint 8 and below
Just extend the generated file:
```js
// .eslintrc.mjs
export default {
extends: ['./.wxt/eslintrc-auto-import.json'],
};
```
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# Manifest
## Overview
Sometimes, you'll need to make manual changes to how the `manifest.json` is generated. You can do this by using the `manifest` configuration:
```ts
// wxt.config.ts
export default defineConfig({
manifest: {
// Put manual changes here
},
});
```
## Manifest Version Compatibility
When defining options in the manifest, always define them for MV3 when possible. WXT will either convert them to their MV2 equivalents or remove them from the generated manifest if there is not MV2 equivalent.
So for fields like `web_accessible_resources` or `content_security_policy`, you just need to list them in their MV3 forms. Other fields, like `side_panel`, which doesn't exist in MV2, will be removed automatically.
Here's an example `wxt.config.ts` file:
```ts
import { defineConfig } from 'wxt';
export default defineConfig({
manifest: {
action: {
default_title: 'Some Title',
},
web_accessible_resources: [
{
matches: ['*://*.google.com/*'],
resources: ['icon/*.png'],
},
],
},
});
```
And here's the different `manifest.json` files generated:
:::code-group
```json [MV2]
{
"manifest_version": 2,
// ...
"browser_action": {
"default_title": "Some Title"
},
"web_accessible_resources": ["icon/*.png"]
}
```
```json [MV3]
{
"manifest_version": 3,
// ...
"action": {
"default_title": "Some Title"
},
"web_accessible_resources": [
{
"matches": ["*://*.google.com/*"],
"resources": ["icon/*.png"]
}
]
}
```
:::
## Name
If not provided via the `manifest` config, the [manifest's `name`](https://developer.chrome.com/docs/extensions/mv3/manifest/name/) defaults to your `package.json`'s `name` property.
## Version
The [manifest's `version` and `version_name`](https://developer.chrome.com/docs/extensions/mv3/manifest/version/) properties are based on the `version` field listed in your `package.json` or `wxt.config.ts`.
- `version_name` is the exact string listed in your `package.json` or `wxt.config.ts` file
- `version` is the string cleaned up, with any invalid suffixes removed
If a version is not found, a warning is logged and the version defaults to `"0.0.0"`.
#### Example
```json
// package.json
{
"version": "1.3.0-alpha2"
}
```
```json
// .output/<dir>/manifest.json
{
"version": "1.3.0",
"version_name": "1.3.0-alpha2"
}
```
## `icons`
By default, WXT will discover icons in your [`public` directory](/guide/directory-structure/public/) and use them for the [manifest's `icons`](https://developer.chrome.com/docs/extensions/mv3/manifest/icons/).
```
public/
├─ icon-16.png
├─ icon-24.png
├─ icon-48.png
├─ icon-96.png
└─ icon-128.png
```
Icon files need to match the following regex to be automatically included in the manifest. Most design software can output icons in one of these formats
<<< @/../packages/wxt/src/core/utils/manifest.ts#snippet
If you prefer to use filenames in a different format, you can add the icons manually in your `wxt.config.ts` file:
```ts
export default defineConfig({
manifest: {
icons: {
16: '/extension-icon-16.png',
24: '/extension-icon-24.png',
48: '/extension-icon-48.png',
96: '/extension-icon-96.png',
128: '/extension-icon-128.png',
},
},
});
```
## Permissions
[Permissions](https://developer.chrome.com/docs/extensions/reference/permissions/) must be listed in the manifest config.
```ts
export default defineConfig({
manifest: {
permissions: ['storage', 'tabs'],
},
});
```
## Host Permissions
[Host Permissions](https://developer.chrome.com/docs/extensions/develop/concepts/declare-permissions#host-permissions) must be listed in the manifest config.
```ts
export default defineConfig({
manifest: {
host_permissions: ['*://*.google.com/*'],
},
});
```
:::warning
If you use host permissions and target both MV2 and MV3, make sure to only include the required host permissions for each version:
```ts
export default defineConfig({
manifest: ({ manifestVersion }) => ({
host_permissions: manifestVersion === 2 ? [...] : [...],
}),
});
```
:::
## Localization
Similar to the icon, the [`_locales` directory](https://developer.chrome.com/docs/extensions/reference/i18n/) should be placed inside the the WXT's [`public` directory](/guide/directory-structure/public/).
```
public/
└─ _locales/
├─ en/
│ └─ messages.json
├─ es/
│ └─ messages.json
└─ ko/
└─ messages.json
```
Then you'll need to explicitly override the `name` and `description` properties in your config for them to be localized.
```ts
export default defineConfig({
manifest: {
name: '__MSG_extName__',
description: '__MSG_extDescription__',
default_locale: 'en',
},
});
```
See the official localization examples for more details:
- [I18n](https://github.com/wxt-dev/wxt-examples/tree/main/examples/vanilla-i18n#readme)
- [Vue I18n](https://github.com/wxt-dev/wxt-examples/tree/main/examples/vue-i18n#readme)
## Actions
In MV2, you had two options: [`browser_action`](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/browser_action) and [`page_action`](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/page_action). In MV3, they were merged into a single [`action`](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/action) API.
By default, whenever an action is generated, WXT falls back to `browser_action` when targetting MV2.
### Action With Popup
To generate a manifest where a UI appears after clicking the icon, just create a [popup entrypoint](/guide/directory-structure/entrypoints/popup).
If you want to use a `page_action` for MV2, add the following `meta` tag to the HTML document's head:
```html
<meta name="manifest.type" content="page_action" />
```
### Action Without Popup
If you want to use the `activeTab` permission or the `browser.action.onClick` event, but don't want to show a popup UI:
1. Delete the [popup entrypoint](/guide/directory-structure/entrypoints/popup) if it exists
2. Add the `action` key to your manifest:
```ts
// wxt.config.ts
export default defineConfig({
manifest: {
action: {},
},
});
```
Same as an action with a popup, WXT will fallback on using `browser_action` for MV2. To use a `page_action` instead, add that key as well:
```ts
// wxt.config.ts
export default defineConfig({
manifest: {
action: {},
page_action: {},
},
});
```
## Full Control
The `manifest` option can also be set equal to a function, letting you use logical statements to determine what should be output.
```ts
// wxt.config.ts
export default defineConfig({
manifest: ({ manifestVersion, browser, mode, command }) => {
return { ... }
}
})
```
Or, you can use the `build:manifestGenerated` hook to transform the manifest before it is written to the output directory.
```ts
// wxt.config.ts
export default defineConfig({
hooks: {
build: {
manifestGenerated(manifest) {
// Update the manifest variable by reference
manifest.name = 'Overriden name';
},
},
},
});
```
@@ -1,133 +0,0 @@
# Multiple Browsers
You can build an extension for any combination of browser and manifest version. Different browsers and manifest versions support different APIs and entrypoints, so be sure to check that your extension functions as expected for each target.
Separate build targets are written to their own output directories:
```
<rootDir>
└─ .output
├─ chrome-mv3
├─ firefox-mv2
├─ edge-mv3
└─ ...
```
## Target Browser
To build for a specific browser, pass the `-b --browser` flag from the CLI:
```sh
wxt --browser firefox
wxt build --browser firefox
```
By default, it will build for `chrome`. When excluding the [manifest version flags](#target-manifest-version), it will default to the commonly accepted manifest version for that browser.
| Browser | Default Manifest Version |
| ---------------- | :----------------------: |
| `chrome` | 3 |
| `firefox` | 2 |
| `safari` | 2 |
| `edge` | 3 |
| Any other string | 3 |
:::tip
To configure which browser is opened when running dev mode via `wxt -b <browser>`, see the [`web-ext.config.ts` docs](/guide/directory-structure/web-ext-config).
:::
## Target Manifest Version
To build for a specific manifest version, pass either the `--mv2` flag or `--mv3` flag from the CLI.
```sh
wxt --mv2
wxt build --mv2
```
When the `-b --browser` flag is not passed, it defaults to `chrome`. So here, we're targeting MV2 for Chrome.
## Customizing Entrypoints
There are several ways to customize entrypoint definitions per browser.
First, you can use either the `include` or `exclude` option to include or exclude the entrypoint from specific browsers. Here are some examples
:::code-group
```ts [Background]
export default defineBackground({
// Only include a background script when targeting chrome
include: ['chrome'],
});
```
```ts [Content Script]
export default defineContentScript({
// Do not add this content script to the manifest when targeting firefox
exclude: ['firefox'],
});
```
```html [HTML page]
<!-- entrypoints/options.html -->
<html>
<head>
<!-- Don't include the options page for safari -->
<meta name="manifest.exclude" content="['safari']" />
</head>
</html>
```
:::
Second, you can change individual options per-browser:
:::code-group
```ts [Background]
export default defineBackground({
persistent: {
// Use a non-persistent background script for just safari
safari: false,
},
});
```
```ts [Content Script]
export default defineContentScript({
matches: {
// Run the content script on different pages for each browser
chrome: ['*://*.google.com/*'],
firefox: ['*://*.duckduckgo.com/*'],
edge: ['*://*.bing.com/*'],
},
});
```
:::
:::warning
Only `defineBackground` and `defineContentScript` support per-browser options right now.
:::
## Runtime
To determine the browser or manifest version at runtime, you can use any of the below variables:
- `import.meta.env.BROWSER`: A string, the target browser, usually equal to the `--browser` flag
- `import.meta.env.MANIFEST_VERSION`: A number, either `2` or `3`, depending on the manifest version targeted
- `import.meta.env.CHROME`: A boolean equivalent to `import.meta.env.BROWSER === "chrome"`
- `import.meta.env.FIREFOX`: A boolean equivalent to `import.meta.env.BROWSER === "firefox"`
- `import.meta.env.EDGE`: A boolean equivalent to `import.meta.env.BROWSER === "edge"`
- `import.meta.env.SAFARI`: A boolean equivalent to `import.meta.env.BROWSER === "safari"`
- `import.meta.env.OPERA`: A boolean equivalent to `import.meta.env.BROWSER === "opera"`
- `import.meta.env.COMMAND`: A string, `"serve"` when running `wxt` for development or `"build"` in all other cases.
:::info
These variables are constants defined at build time based on the build target. They do not actually detect which browser the code is running in.
For example, if you build for `--browser chrome` and publish it on Edge, `import.meta.env.BROWSER` will be `"chrome"`, not `"edge"`. You have to build a separate ZIP for `--browser edge` before `import.meta.env.BROWSER` will be `"edge"`.
If you need to know the actual browser your code is being ran on, you should use a [user agent parser](https://www.npmjs.com/package/ua-parser-js).
:::
@@ -1,108 +0,0 @@
# Web Extension Polyfill
## Overview
WXT is built on top [`webextension-polyfill` by Mozilla](https://www.npmjs.com/package/webextension-polyfill). The polyfill standardizes much of web extension APIs so they behave the same across different browsers and manifest versions.
Unlike with Chrome Extension development, which uses a `chrome` global, you need to import the `browser` variable from WXT to access the extension APIs:
```ts
import { browser } from 'wxt/browser';
console.log(browser.runtime.id);
```
If you use auto-imports (enabled by default), you don't need to import this variable, it will work just like the `chrome` global:
```ts
console.log(browser.runtime.id);
```
## Handling Differences
Web extensions behave **_VERY_** differently between browsers and manifest versions. You will have to handle these API differences yourself.
:::info
MDN has great compatibility tables for tracking which browsers support which APIs: [Web Extension Browser Support for JavaScript APIs](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Browser_support_for_JavaScript_APIs)
:::
Lets go over a few approaches:
1. **Feature detection**: If an API isn't available, it is `undefined`. So check if that's the case before using it.
```ts
if (browser.runtime.onStartup) {
browser.runtime.onStartup.addListener(...);
}
```
If there's a similar API you can fallback on, you can do something like this:
```ts
(browser.action ?? browser.browserAction).setBadgeColor('red');
```
2. **Check the browser**: WXT provides environment variables about which browser is being targeted.
```ts
if (!import.meta.env.SAFARI) {
// Safari doesn't implement `onStartup` correctly, so we need a custom solution
// ...
} else {
browser.runtime.onStartup.addListener(...)
}
```
3. **Check the manifest version**: WXT provides environment variables about which manifest version is being targeted.
```ts
if (import.meta.env.MANIFEST_VERSION === 3) {
// MV3 only code...
} else {
// MV2 only code...
}
```
### Environment Variables
| Name | Type | Description |
| ---------------------------------- | --------- | ----------------------------------------------------- |
| `import.meta.env.BROWSER` | `string` | The target browser |
| `import.meta.env.MANIFEST_VERSION` | `2 │ 3` | The target manifest version |
| `import.meta.env.CHROME` | `boolean` | equivalent to `import.meta.env.BROWSER === "chrome"` |
| `import.meta.env.FIREFOX` | `boolean` | equivalent to `import.meta.env.BROWSER === "firefox"` |
| `import.meta.env.SAFARI` | `boolean` | equivalent to `import.meta.env.BROWSER === "safari"` |
| `import.meta.env.EDGE` | `boolean` | equivalent to `import.meta.env.BROWSER === "edge"` |
| `import.meta.env.OPERA` | `boolean` | equivalent to `import.meta.env.BROWSER === "opera"` |
WXT uses Vite, so all of Vite's `import.meta.env` variables are also available:
<https://vitejs.dev/guide/env-and-mode#env-variables>
## Augmented Types
Based on the files in your project, WXT will modify some of the polyfill's types to be type-safe.
For example, `browser.runtime.getURL` will be typed to only allow getting the URL of known files. `browser.i18n.getMessage` will only allow getting translations of messages defined in your `public/_locales/<default-locale>/messages.json` file.
## Missing Types
Some newer APIs that Chrome provides are missing types. Don't worry, the APIs are present at runtime! The polyfill only provides types for standard and stable APIs that work on all browsers, so just be careful when you use them.
If you're using TypeScript, you can use `@ts-expect-error` to ignore any errors when using an API that doesn't have any types.
```ts
// @ts-expect-error: desktopCapture is not typed
browser.desktopCapture.chooseDesktopMedia(...)
```
Note that when running this code in a different browser that doesn't support the `desktopCapture` API, `browser.desktopCapture` will evaluate to `undefined` and an error will be thrown.
## Missing Permissions
Just like with the `chrome` global, you need to request the required permissions to use each API. Otherwise, `browser.{apiName}` will be `undefined`.
For example, if you try to use `browser.storage.local.getItem(...)` without requesting the `storage` permission, the extension will throw an error:
```
Cannot access property "local" of undefined.
```
You can request permissions using the [`wxt.config.ts` file](/guide/directory-structure/wxt-config#permissions).
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# `wxt submit`
> Alias for [`publish-browser-extension`](https://www.npmjs.com/package/publish-browser-extension)
<script setup>
import { data } from '../../.vitepress/loaders/cli.data.ts'
</script>
<div class="language-sh vp-adaptive-theme active"><pre class="shiki shiki-themes github-light github-dark vp-code"><code>{{ data.submit }}</code></pre></div>
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@@ -0,0 +1,66 @@
# Compare
Lets compare the features of WXT vs [Plasmo](https://docs.plasmo.com/framework) (another framework) and [CRXJS](https://crxjs.dev/vite-plugin) (a bundler plugin).
## Overview
- ✅ - Full support
- 🟡 - Partial support
- ❌ - No support
| Features | WXT | Plasmo | CRXJS |
| ------------------------------------------------------- | :-----: | :-----: | :-----: |
| Supports all browsers | ✅ | ✅ | 🟡 [^j] |
| MV2 Support | ✅ | ✅ | 🟡 [^a] |
| MV3 Support | ✅ | ✅ | 🟡 [^a] |
| Create Extension ZIPs | ✅ | ✅ | ❌ |
| Create Firefox Sources ZIP | ✅ | ❌ | ❌ |
| First-class TypeScript support | ✅ | ✅ | ✅ |
| Entrypoint discovery | ✅ [^b] | ✅ [^b] | ❌ |
| Inline entrypoint config | ✅ | ✅ | ❌ [^i] |
| Auto-imports | ✅ | ❌ | ❌ |
| Reusable module system | ✅ | ❌ | ❌ |
| Supports all frontend frameworks | ✅ | 🟡 [^c] | ✅ |
| Framework specific entrypoints (like `Popup.tsx`) | 🟡 [^d] | ✅ [^e] | ❌ |
| Automated publishing | ✅ | ✅ | ❌ |
| Remote Code Bundling (Google Analytics) | ✅ | ✅ | ❌ |
| Unlisted HTML Pages | ✅ | ✅ | ✅ |
| Unlisted Scripts | ✅ | ❌ | ❌ |
| ESM Content Scripts | ❌ [^l] | ❌ | ✅ |
| <strong style="opacity: 50%">Dev Mode</strong> | | | |
| `.env` Files | ✅ | ✅ | ✅ |
| Opens browser with extension installed | ✅ | ❌ | ❌ |
| HMR for UIs | ✅ | 🟡 [^f] | ✅ |
| Reload HTML Files on Change | ✅ | 🟡 [^g] | ✅ |
| Reload Content Scripts on Change | ✅ | 🟡 [^g] | ✅ |
| Reload Background on Change | 🟡 [^g] | 🟡 [^g] | 🟡 [^g] |
| Respects Content Script `run_at` | ✅ | ✅ | ❌ [^h] |
| <strong style="opacity: 50%">Built-in Wrappers</strong> | | | |
| Storage | ✅ | ✅ | ❌ [^k] |
| Messaging | ❌ [^k] | ✅ | ❌ [^k] |
| Content Script UI | ✅ | ✅ | ❌ [^k] |
| I18n | ✅ | ❌ | ❌ |
[^a]: Either MV2 or MV3, not both.
[^b]: File based.
[^c]: Only React, Vue, and Svelte.
[^d]: `.html`, `.ts`, `.tsx`.
[^e]: `.html`, `.ts`, `.tsx`, `.vue`, `.svelte`.
[^f]: React only.
[^g]: Reloads entire extension.
[^h]: ESM-style loaders run asynchronously.
[^i]: Entrypoint options all configured in `manifest.json`.
[^j]: As of `v2.0.0-beta.23`, but v2 stable hasn't been released yet.
[^k]: There is no built-in wrapper around this API. However, you can still access the standard APIs via `chrome`/`browser` globals or use any 3rd party NPM package.
[^l]: WIP, moving very slowly. Follow [wxt-dev/wxt#357](https://github.com/wxt-dev/wxt/issues/357) for updates.
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---
outline: false
---
# FAQ
Commonly asked questions about how to use WXT or why it behaves the way it does.
[[toc]]
---
### Why are content scripts not showing up in the manifest?
During development, WXT registers content scripts dynamically so they can be reloaded individually when a file is saved without reloading your entire extension.
To list the content scripts registered during development, open the service worker's console and run:
```js
await chrome.scripting.getRegisteredContentScripts();
```

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