You can no longer update beyond Firefox 52 (ESR) on Windows XP and Windows Vista.

• https://support.mozilla.org/en-US/kb/end-support-windows-xp-and-vista

See also:

• https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware

Download the web-browser here. It is a little ahead of your current one. The support ends completely in April 2018 from what I read in other posts. Get Linux or upgrade your version of Windows and probably your computer. Windows 10 spies on you and it cannot be stopped, it can be slowed down at this time and keeps being turned on again by Microsoft and the 3rd party's they deal with. Windows 7 and Windows 8/8.1 are being turned into Windows 10. Apple Mac's are not as bad, but do the same thing. Google software and hardware does the same thing. Linux has a large learning curve and you need to learn about a few security things to install.

direct link to the executable is a violation of forum rules - deleted Forum Rules & Guidelines . "Do not post direct links to executable files"

https://www.mozilla.org/en-US/firefox/new/

I am using Windows Vista right now and have not checked out Windows XP. This should be the file as of today's date: Firefox Setup 52.5.0esr.exe

SyncroScales, the link you gave will serve Firefox 57.0 which requires Windows 7 or later.

The better link to use for current Release of Firefox 52 ESR is https://www.mozilla.org/firefox/organizations/all/

Firefox 52.8.0esr out on May 8, 2018 is likely to be the last update unless Mozilla by chance extends support.

I clicked the url and Mozilla seems to understand I am using Windows Vista so it automatically gave me the proper .exe file. I will look at the url you provided.