Firefox 4 will be the first version of Firefox web browser that is going to have full support for 64-bit (x64) operating system. Currently, Firefox 3.6 and earlier version of Firefox web browser only offers 32-bit (x86) version software. However, the final version of Firefox 4 is scheduled to be released only by end of the 2010, and only if development is on track. It … Continue reading How to Download Official 64-bit Firefox (x64) Installer Before Final Release