diff --git a/docs/guide/essentials/config/environment-variables.md b/docs/guide/essentials/config/environment-variables.md
index ee1e2297..8e299665 100644
--- a/docs/guide/essentials/config/environment-variables.md
+++ b/docs/guide/essentials/config/environment-variables.md
@@ -9,6 +9,10 @@ WXT supports [dotenv files the same way as Vite](https://vite.dev/guide/env-and-
 .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:
diff --git a/packages/wxt/src/core/resolve-config.ts b/packages/wxt/src/core/resolve-config.ts
index e99dbb10..dc93a319 100644
--- a/packages/wxt/src/core/resolve-config.ts
+++ b/packages/wxt/src/core/resolve-config.ts
@@ -74,7 +74,7 @@ export async function resolveConfig(
   const mode = mergedConfig.mode ?? COMMAND_MODES[command];
   const env: ConfigEnv = { browser, command, manifestVersion, mode };
 
-  loadEnv(mode); // Load any environment variables used below
+  loadEnv(mode, browser); // Load any environment variables used below
 
   const root = path.resolve(
     inlineConfig.root ?? userConfig.root ?? process.cwd(),
diff --git a/packages/wxt/src/core/utils/env.ts b/packages/wxt/src/core/utils/env.ts
index a6a65ae3..cd189ab2 100644
--- a/packages/wxt/src/core/utils/env.ts
+++ b/packages/wxt/src/core/utils/env.ts
@@ -1,10 +1,21 @@
 import { config } from 'dotenv';
+import type { TargetBrowser } from '../../types';
 
 /**
- * Load environment files based on the current mode.
+ * Load environment files based on the current mode and browser.
  */
-export function loadEnv(mode: string) {
+export function loadEnv(mode: string, browser: TargetBrowser) {
   return config({
-    path: [`.env.${mode}.local`, `.env.${mode}`, `.env.local`, `.env`],
+    // Files on top override files below
+    path: [
+      `.env.${mode}.${browser}.local`,
+      `.env.${mode}.${browser}`,
+      `.env.${browser}.local`,
+      `.env.${browser}`,
+      `.env.${mode}.local`,
+      `.env.${mode}`,
+      `.env.local`,
+      `.env`,
+    ],
   });
 }