Firefox 4 is perhaps the most eagerly awaited version of Firefox till date. which is scheduled to release around the end of this year with impressive UI and performance enhancements including mozilla’s new revamped Javascript engine. beta releases are available to download in mozilla’s directory of nightly builds for Windows , linux and OS X in both x86 and x64 systems.
(The new tabs-on-top UI is not available for linux yet)
Rumor has it that Firefox 4.0 Beta is very much faster compared to the latest stable release and It is around 30% faster than Firefox 3.6.6. However, this is still not even nearly as fast as browsers like Opera and Google Chrome and also that Firefox 4.0 has a much faster JavaScript engine than Firefox 3.6.6.
It completely outshines Firefox 3.6.6 in every way but memory consumption. As this is only a beta, I expect this to get fixed. The new tab on top interface is still not available in Linux yet, but hope that it will be available before long.
Download Firefox 4.0 beta for Windows ( 32 bit | 64 bit)
Download Firefox 4.0 beta for Linux ( 32 bit | 64 bit) (Installation guide)
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