Open source mozilla projects
Every project in the registry tagged mozilla, ranked by real GitHub adoption.
Firefox for iOS
Firefox user.js for optimal privacy and security. Your favorite browser, but better.
A libre Android browser built from scratch on Gecko. Privacy by default, powerful tab containers, and a local-first search engine.
Related tags
Frequently asked questions
How many open source mozilla projects are there?
This registry tracks 3 projects tagged mozilla, with 24,886 GitHub stars between them. The most-adopted is firefox-ios at 13,039 stars.
Are these mozilla projects free to use?
Yes — 3 of the 3 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which mozilla project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these mozilla projects still maintained?
3 of the 3 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.