Discussions about add-on development, add-on support and addons.mozilla.org. You can also learn more about add-ons on MDN, or in the add-ons blog.

Discussion of Thunderbird, an Email and communications platform for desktop. Here you can discuss the application, get mentorship on how to begin contributing, and offer up ideas and concepts for the future of the software.

Discussion of the Firefox Developer Tools.

The MDN category is for discussing topics related to the MDN site. If you want to be involved in making MDN more awesome, please share your ideas, opinions, questions, etc. Please observe the Mozilla Community Participation Guidelines to create a safe and positive community for everyone.

This is the place for mozillians to gather, talk and discuss about any general topic around Mozilla Project and its products.

Welcome to the Common Voice community forum. A space to collaborate, connect with members and engage in the weekly updates. This forum is multilingual, learn more on our readme.

This category is for discussions around Linux in relation to Mozilla.

Discussions related to the JavaScript engine that powers Firefox and other software. How it works, how to contribute, how to use in other projects, and more.

Questions and answers about Firefox browser development. Come help us build the best web browser and the future of the Open Web.

Discussion of WebThings, an open platform for monitoring and controlling devices over the web (webthings.io)

The primary forum for announcements, questions, and discussions all on localization and translation at Mozilla.

A place for the Mozilla community to discuss Firefox, Fenix and GeckoView on Android

Discussions for local communities. You can email to communities@mozilla-community.org to post to this category.

Announcements of internal Firefox tooling changes.

This category is where we’ll share updates and solicit feedback, input and beta testers during the development of the new Community Portal - wiki page here.

The Developer Community project by Mozilla aims to support developers and groups of developers around the world.

Discussions relating to Community Ops

Fluent is a localization system designed to improve how software is translated. This Discourse category is a place to discuss the design of Fluent, plan the future versions and receive support.

Use Firefox Nightly, report bugs, build and empower a community of power-users all around the globe, let's discuss all things Nightly here!

Discussion about this forum, its organization, how it works, and how we can improve it.

Discussions about Mozilla’s Identity and Access Management project.

Category for Mozilla Reps to discuss about the program and activities.
The Reps program is now closed

Public discussion of people.mozilla.org. For private discussion, please use the #pmo:nda category.

Archives of categories and threads that no longer serve a useful purpose.

Category for moving off topic posts to.