Welcome to WebExtensions Experiments

WebExtensions are a cross-browser system for developing browser add-ons.

WebExtensions Experiments allow developers to write experimental WebExtensions APIs for Firefox. They can be used to prototype APIs for landing in Firefox, or for use on Nightly or Developer Edition.

If you simply want to request a WebExtensions API, please file a bug. These will be triaged and processed in a weekly public meeting.


This documentation lives on github, pull requests and issues are welcome.

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