webExtension module

Specifications

Specification
WebDriver BiDi # module-webExtension

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`webExtension`	Chrome – Full support Chrome 135 (Release date: 2025-04-01) footnote Full support	Edge – Full support Edge 135 (Release date: 2025-04-04) footnote Full support	Firefox – Full support Firefox 137 (Release date: 2025-04-01) footnote Full support	Opera – Full support Opera 120 (Release date: 2025-07-02) footnote Full support	Safari – No support Safari footnote No support	Chrome Android – Full support Chrome Android 135 (Release date: 2025-04-01) footnote Full support	Firefox for Android – Full support Firefox for Android 137 (Release date: 2025-04-01) footnote Full support	Opera Android – Full support Opera Android 89 (Release date: 2025-04-29) footnote Full support	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – Full support Samsung Internet 29 (Release date: 2025-10-25) footnote Full support	WebView Android – Full support WebView Android 135 (Release date: 2025-04-01) footnote Full support	WebView on iOS – No support WebView on iOS footnote No support
`webExtension.install` command	Chrome – Partial support Chrome 135 (Release date: 2025-04-01) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	Edge – Partial support Edge 135 (Release date: 2025-04-04) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	Firefox – Full support Firefox 137 (Release date: 2025-04-01) footnote Full support	Opera – Partial support Opera 120 (Release date: 2025-07-02) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	Safari – No support Safari footnote footnote See bug 288348	Chrome Android – Partial support Chrome Android 135 (Release date: 2025-04-01) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	Firefox for Android – Full support Firefox for Android 137 (Release date: 2025-04-01) footnote Full support	Opera Android – Partial support Opera Android 89 (Release date: 2025-04-29) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	Safari on iOS – No support Safari on iOS footnote footnote See bug 288348	Samsung Internet – Partial support Samsung Internet 29 (Release date: 2025-10-25) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	WebView Android – Partial support WebView Android 135 (Release date: 2025-04-01) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	WebView on iOS – No support WebView on iOS footnote footnote See bug 288348
`extensionData` parameter	Chrome – Partial support Chrome 135 (Release date: 2025-04-01) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	Edge – Partial support Edge 135 (Release date: 2025-04-04) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	Firefox – Full support Firefox 137 (Release date: 2025-04-01) footnote Full support	Opera – Partial support Opera 120 (Release date: 2025-07-02) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	Safari – No support Safari footnote No support	Chrome Android – Partial support Chrome Android 135 (Release date: 2025-04-01) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	Firefox for Android – Full support Firefox for Android 137 (Release date: 2025-04-01) footnote Full support	Opera Android – Partial support Opera Android 89 (Release date: 2025-04-29) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – Partial support Samsung Internet 29 (Release date: 2025-10-25) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	WebView Android – Partial support WebView Android 135 (Release date: 2025-04-01) footnote Partial support footnote Only the `"path"` type is supported, not the `"archivePath"` and `"base64"` types.	WebView on iOS – No support WebView on iOS footnote No support
`webExtension.uninstall` command	Chrome – Partial support Chrome 135 (Release date: 2025-04-01) footnote Partial support footnote Basic support	Edge – Partial support Edge 135 (Release date: 2025-04-04) footnote Partial support footnote Basic support	Firefox – Full support Firefox 137 (Release date: 2025-04-01) footnote Full support	Opera – Partial support Opera 120 (Release date: 2025-07-02) footnote Partial support footnote Basic support	Safari – No support Safari footnote footnote See bug 288349	Chrome Android – Partial support Chrome Android 135 (Release date: 2025-04-01) footnote Partial support footnote Basic support	Firefox for Android – Full support Firefox for Android 137 (Release date: 2025-04-01) footnote Full support	Opera Android – Partial support Opera Android 89 (Release date: 2025-04-29) footnote Partial support footnote Basic support	Safari on iOS – No support Safari on iOS footnote footnote See bug 288349	Samsung Internet – Partial support Samsung Internet 29 (Release date: 2025-10-25) footnote Partial support footnote Basic support	WebView Android – Partial support WebView Android 135 (Release date: 2025-04-01) footnote Partial support footnote Basic support	WebView on iOS – No support WebView on iOS footnote footnote See bug 288349
`extension` parameter	Chrome – Partial support Chrome 135 (Release date: 2025-04-01) footnote Partial support footnote Basic support	Edge – Partial support Edge 135 (Release date: 2025-04-04) footnote Partial support footnote Basic support	Firefox – Full support Firefox 137 (Release date: 2025-04-01) footnote Full support	Opera – Partial support Opera 120 (Release date: 2025-07-02) footnote Partial support footnote Basic support	Safari – No support Safari footnote No support	Chrome Android – Partial support Chrome Android 135 (Release date: 2025-04-01) footnote Partial support footnote Basic support	Firefox for Android – Full support Firefox for Android 137 (Release date: 2025-04-01) footnote Full support	Opera Android – Partial support Opera Android 89 (Release date: 2025-04-29) footnote Partial support footnote Basic support	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – Partial support Samsung Internet 29 (Release date: 2025-10-25) footnote Partial support footnote Basic support	WebView Android – Partial support WebView Android 135 (Release date: 2025-04-01) footnote Partial support footnote Basic support	WebView on iOS – No support WebView on iOS footnote No support

Tip: you can click/tap on a cell for more information.

Full support: Full support
Partial support: Partial support
No support: No support
: See implementation notes.

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Specifications

Browser compatibility

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