Issue 44114 Chrome support for the browser namespace#2336
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| Starting with Chromium 148, Chrome supports the `browser` namespace and promises (except for extensions with a DevTools page), meaning all major browsers now support the `browser` namespace. For more information, see [Transition to browser namespace](https://developer.chrome.com/docs/extensions/develop/concepts/browser-namespace). | ||
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| For Chrome extensions that don't use the `browser` namespace, most of the [WebExtension APIs](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API) provide support for callback functions under the `chrome` namespace. The only APIs that aren't supported in the `chrome` namespace are those that are incompatible with Chrome or support Firefox only features. In those cases, the API documentation page states that support is provided only in the `browser` namespace. |
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I'm not aware of any APIs that are only available in the browser namespace but not in chrome. Could you drop this and (as a new task) verify that we don't make the assumption "browser namespace defined = Firefox" anywhere in mdn (content / examples)?
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@Rob--W we state in the note on proxy, given that the API is incompatible with Chrome's version. Also, what about contextualIdentities? It's not documented, but it's an API not available in Chrome. (I'll check shortly.) If either or both of these hold true, perhaps we should change this to an explicit list (assuming there aren't any others).
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@Rob--W we state in the note on proxy, given that the API is incompatible with Chrome's version.
That note is inaccurate.
Also, what about contextualIdentities?
Also available to both namespaces. There are common cross-browser APIs and unique browser-specific APIs.
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Thanks @Rob--W updated, and I'll set up a new PR for MDN next.
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Co-authored-by: Rob Wu <rob@robwu.nl>
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Description
Update various content to note that, with the exception of extensions using DevTools pages, browsers based on Chromium 148 support the
browsernamespace for the WebExtension APIs.Motivation
To provide up-to-date information on Chrome's browser namespace support.
Related issues and pull requests
MDN content changes made in mdn/content#44149