Mozilla Firefox 3 has been released. Available for Windows, Mac OS X and Linux in 46 different localisations, Firefox 3 is the most major Mozilla browser release since the launch of Firefox 2 in October 2006 and represents the culmination of over three years work (development on Firefox 3 began before even Firefox 1.5 came out). According to the press release announcing Firefox 3, the new version has over 15,000 improvements.

Firefox 3 can be downloaded from the redesigned Firefox product page or the Firefox 3.0 directory on releases.mozilla.org (it's not yet being offered to Firefox 2 users via the software update system). More information can be found in the Firefox 3 Release Notes.

The use of newer technologies means that Firefox 3 has higher system requirements than Firefox 2. In Microsoft land, Windows 95, 98, ME and NT 4.0 are no longer supported. On the Mac side, the minimum OS X version jumps from 10.2 Jaguar to 10.4 Tiger. In both cases, the operating system versions that are no longer supported have long since been abandoned by even Microsoft and Apple.