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Browser Support


The @webext-core packages are simple wrappers around webextension-polyfill by Mozilla. As such, they will work on:

BrowserSupported Versions
Chrome>= 87
Firefox>= 78
Safari 1>= 14
Edge>= 88

Other Chromium-based browsers are not officially supported, and may not work*2*. See Mozilla's supported browsers documentation for more details.

1 - webextension-polyfill works on Safari, however Safari does not implement the complete web extension standard. See the browser compatibliity chart for more details.

2 - In practice, the browsers are close enough to chrome that they work 99% of the time. But make sure to test your extension before assuming it will work.

Released under the MIT License.