

Microsoft itself has ended support for Windows XP and Windows Vista. The main reason Firefox is ending updates on the browser for older operating systems, is out of concern for the security of the machines. While new features will not be released for the older operating systems, Firefox will continue to deliver security patches till September 2017. The supported operating systems by Microsoft are now limited to Windows 7, Windows 8 and Windows 10. The last supported version of the popular browser on the older operating systems by Microsoft will be Firefox Version 52, according to a post in the Firefox support site.

Mozilla is ending updates for Firefox on Windows Xp and Windows Vista.
