Marketplace/Contributing/Addons

Contribute to Add-ons (AMO)

Thank you for your interest in Firefox Add-ons. It's easy to start contributing--whether by leaving a review of your favorite add-on, designing a theme, or creating an add-on, your efforts are appreciated!

If you are new to add-ons:

Review your favorite add-ons

Search for your favorite add-on at https://addons.mozilla.org. On the add-on's detail page, scroll down to the Reviews section and leave a comment for the developer.

Create a collection

Collections make it easy to keep track of favorite add-ons and share your perfectly customized browser with others. Get started here: https://addons.mozilla.org/firefox/collections/

Create a theme

Lightweight themes let you personalize the look of your Firefox. To create your own, start here: https://addons.mozilla.org/developers/docs/themes

If you are a more technical contributor:

Create an add-on

To get started, take a look at the Add-on Developer Hub. It contains documentation, tools and information on how to get in touch with other developers: https://addons.mozilla.org/developers/

Builder & SDK: The quickest and easiest way to create add-ons: https://addons.mozilla.org/en-US/developers/builder

XUL School: A comprehensive tutorial for more advanced developers: https://developer.mozilla.org/en/XUL_School

You can post questions and connect with other add-ons developers in the Add-ons Forum: https://forums.mozilla.org/addons/

Help test add-ons

If you are interested in testing add-ons, you can join the quality team: http://quality.mozilla.org/

It's also helpful to install the Add-ons Compatibility Reporter and use it to let us know when an add-on is not working properly: https://addons.mozilla.org/firefox/addon/add-on-compatibility-reporter

Help add-on developers

If you're already familiar with add-on development or you think you're a good technical writer, help us improve the documentation for add-on developers: https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons

You can also help by translating these docs to a different language (pro tip: try replacing the en-US part of the link above to your native language code).

Contact us

• Amy Tsay (Community Manager)
• IRC: amyt
• Twitter: @catchingamy