Mozilla previewed Firefox 64-bit on Windows in March 2015, and shipped a stable edition in December of that year.Ī 64-bit Firefox has been increasingly important for Mozilla as more users switch to a 64-bit operating system, including Windows 10, which comes in both bit flavors. Although Mozilla has long had 64-bit versions for macOS and Linux, it shelved work on one for Windows in November 2012, only to recant and restart the project a month later. Mozilla's move was just the latest in a very long process to replace the older 32-bit Firefox with the more capable 64-bit version. Click Run to start the installation immediately. Google shipped a Windows 64-bit Chrome in August 2014 and one for macOS in November of that year, while Apple's Safari and Microsoft's Internet Explorer (IE) have had 64-bit editions on macOS and Windows since 20, respectively. To start the download, click the Download button and then do one of the following, or select another language from Change Language and then click Change. Mozilla's rivals have offered 64-bit browsers for, in some cases, years.
The only other requirement is that the personal computer must be equipped with at least 2GB of RAM, or system memory.Ī 64-bit browser on a 64-bit operating system can address more than the 4GB of memory available to a 32-bit application, letting users keep open hundreds of tabs, and run larger, more sophisticated web apps. 8, is now installed by default on all 64-bit hardware running a 64-bit edition of Windows. The 64-bit version of Firefox 55, which Mozilla released on Aug. "Users on 64-bit Windows who download Firefox will now get our 64-bit version by default," Mozilla explained in a Monday post to a company blog. Mozilla now automatically delivers the 64-bit version of Firefox to Windows users with compatible hardware, the open-source developer said this week.