Mozilla started to discuss the end of support for Windows 7 and 8.1 almost three years ago, but the thread on Bugzilla got traction only recently. Firefox on all Linux distributions, on Mac, and all other versions of Windows, including Windows 8.1, also have a user base of about 15%. The percentage dropped significantly in the past couple of years, but is still almost as much as the percentage of all other operating systems that Firefox runs on, with the exception of the dominating Windows 10 platform. About 15% of Firefox users use the browser on Windows 7 and 8.1 machines.

Google did not reveal how large the browser's user base is on these two Windows operating systems. The company told Chrome users who run the browser on devices powered by these operating systems that they could continue running Chrome 109, the last version to be released for Windows 7 and 8.1, but that the browser would not receive any more updates. Google announced that it will end support for Google Chrome on Windows 7 and Windows 8 in February 2023.

Firefox browser for windows 10