Even though I am personally not a fan of the Firefox browser (the 32-bit version crashes a lot on my 64-bit OS), Firefox 5 is now available for download, three days prior to its initial June 21st release. The version ready for download is considered stable, and users can download it for Windows, Mac, or Linux.
Believe it or not, development on the next version of Firefox, Firefox 6, is currently in alpha testing (the phase before beta testing) and will probably hit sometime by the end of this summer. Now what about for all you 64-bit operating systems with over 3GB of system RAM? Well, you’re still stuck with using 32-bit browsers since Adobe has not yet released a stable version of Flash for 64-bit.