Tentatively scheduled for release in November 2010, Firefox 4 will bring a new, "faster" user interface. Mockups of the new interface on Windows, Mac OS X, and Linux have been made available. Other features slated for Firefox 4 include a new Account Manager, improved notifications, application tabs, and a redesigned extension manager.
Additionally, Firefox 4 will add support for WebM, WebGL, multitouch displays, and 64-bit systems. It will also come with improved HTML5 and CSS3 support, and a new JavaScript engine.
Firefox 4 Beta 2 is available. Or download the latest Official Version Firefox 3.6.8.
