About WebExtensions

The WebExtensions API is a cross-browser API for developing extensions and themes that can modify the capability of a browser.

How Do I Get Started?

To get started with contributing to the WebExtensions API, see https://wiki.mozilla.org/Add-ons/Contribute#Contribute_to_the_WebExtensions_API.

How Do I Get Help?

We are available on Matrix in the Add-ons room.