Supported by the Mozilla Foundation and the Mozilla Corporation, Mozilla is a free software community best known for developing the Firefox web browser.

It uses, develops, spreads and supports Mozilla products, promoting exclusively free software and open standards with only minor exceptions. Mozilla also produces Thunderbird, Firefox Mobile, the Firefox OS mobile operating system, the bug-tracking system Bugzilla, SeaMonkey, SpiderMonkey, Rhino, Gecko and a number of other projects.