After a few months with the beta release, eventually Firefox 4 has been released officially. Current number of downloads after the release of mozilla's version 4 has been more than 58500000 downloads, this number continues to rise each minute. The average download every minute touch numbers 5,000 downloads, download statistics can be viewed in firefox http://glow.mozilla.
Firefox version 4 it brings changes quite a lot from the previous version, especially in terms of its appearance. First time perceived by the user of course it looks like the opera browser. There are some changes in this latest version of Firefox. Here are a few changes:
One of his weaknesses, there are some add-ons are not compatible with the latest version of Firefox 4, e.g. service social bookmarking, Delicious Bookmarks 2.1.106. RealPlayer Browser Record Plugin 1.0 and NoScript 126.96.36.199 Add-ons are quite popular as well are not compatible. For web developers need not worry, because the Add-ons "mandatory" like FireBug, Web Developer, User Agent Switcher or YSlow goes well.
Other minor flaws is users cannot select the address bar directly by pressing the F6 (in version 3.6 can), for users who are accustomed to rarely use this pretty little thing mouse intervene.
Overall, Firefox 4 is reliable enough to compete with some of the other browsers. However one of the hallmarks of this browser is, still support the Windows XP platform, which it had been abandoned by Microsoft itself, through Internet Explorer.