Mozilla has released version 4.0 of its popular browser to its official download page after two Release Candidates found their way to testers earlier this month. Mozilla will be hoping to top their previous Guinness World Record of 8,002,530 downloads within 24 hours for Firefox 3.0, which took place in June 2008 with parties in over 25 countries.

Based on the Gecko 2.0 engine, Firefox 4 comes with an all new user interface, new ways to organize tabs, a revamped add-on manager, support for HTML5 video standards, multi-touch support on Windows 7 and a range of performance and security enhancements.