The stable, supported, mainstream version of Firefox on Windows is a 32-bit application. Even if you use 64-bit Windows, if you use Firefox, you’re using a 32-bit browser. The exception is if you’re ...

Mozilla has begun offering highly experimental builds of a 64-bit version of Firefox. Given that Mac OS X, Windows 7 and most versions of Linux are all available in 64-bit, it makes sense that Firefox ...

Mozilla now automatically delivers the 64-bit version of Firefox to Windows users with compatible hardware, the open-source developer said this week. (Firefox can be downloaded here.) “Users on 64-bit ...

Mozilla engineers have decided that starting with Firefox 56 they will silently and forcibly auto-upgrade some users of 32-bit Firefox to 64-bit versions. Obviously, the only ones that will be ...

Mozilla this week suspended development of a 64-bit version of Firefox for Windows, citing add-on incompatibilities and low priority for the project. In a message posted to Bugzilla, the company’s bug ...

Mozilla has finally, finally introduced a 64-bit version of Firefox for Windows with the recent release of Firefox 43. There were already 64-bit versions for Mac and Linux. Windows users, however, ...