Mozilla recently announced that the final version of its Firefox 4 Web browser has been released and is now available for download. In just 24 hours, the browser reached over 6 million downloads. It is quite an achievement, compared to Microsoft’s latest Internet Explorer 9 release, which had about 2.35 million downloads in its first 24 hours. Firefox 4 includes a bunch of different enhancements like a redesigned UI, improved tab management and faster performance. Check out Firefox 4′s new features in this short video below.