fix: rename and make firefoxPrefs in web-ext.config.ts work (#2068)

packages/wxt/src/core/runners/web-ext.ts

@@ -44,7 +44,7 @@ export function createWebExtRunner(): ExtensionRunner {
           ? {
               firefox: wxtUserConfig?.binaries?.firefox,
               firefoxProfile: wxtUserConfig?.firefoxProfile,
-              prefs: wxtUserConfig?.firefoxPrefs,
+              pref: wxtUserConfig?.firefoxPref,
               args: wxtUserConfig?.firefoxArgs,
             }
           : {

packages/wxt/src/types.ts

@@ -992,7 +992,7 @@ export interface WebExtConfig {
   /**
    * @see https://extensionworkshop.com/documentation/develop/web-ext-command-reference/#pref
    */
-  firefoxPrefs?: Record<string, string>;
+  firefoxPref?: Record<string, boolean | number | string>;
   /**
    * @see https://extensionworkshop.com/documentation/develop/web-ext-command-reference/#args
    */