Add-ons using the APIs described in this document are considered a legacy technology in Firefox and will be removed in Firefox 57. Don't use these techniques to develop new add-ons - use the WebExtensions API instead. If you maintain an add-on which uses the techniques described here, consider migrating it to use WebExtensions.

This repository sticks around for reference purposes.

A collection of JS modules, sample code, and boilerplate add-ons to help you build add-ons for Firefox for Android.

Refer to the Firefox for Android Add-ons documentation on MDN for tutorials and API reference.