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.

Information about policies for WebExtensions APIs and how to request a new API are available on the Mozilla wiki.

Contents:

• Basics
  • Overview
• Uplifting
  • Adding to github
  • Tell people
  • Updating this documentation
  • Landing in Firefox
  • What if it doesn’t land in Firefox?
• FAQ
  • Can I include a chrome.manifest in an experiment?
  • Why is my experiment undefined on Beta and Release?

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

Indices and tables

• Index
• Module Index
• Search Page