Welcome to WebExtensions Experiments

WebExtensions are becoming the cross-browser standard for developing add-ons in Firefox.

WebExtensions Experiments allow developers to write experimental WebExtensions APIs for Firefox add-ons. 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 bi-weekly public meeting.

Contents:

• Why?
  • Overview
• Existing Experiments
  • Login
  • Hello world
• How to write an Experiment
  • Using the boilerplate
  • Designing your API
  • Installing the experiment
  • Using the experiment
• Uplifting
  • Adding to github
  • Tell people
  • Landing in Firefox
  • What if it doesn’t land in Firefox?
• New API Guidelines
  • Examples
• Policy
• Schema

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

Indices and tables

• Index
• Module Index
• Search Page