Mozilla has already stopped supporting the EOL Windows XP and Vista in the Firefox web browser.

There is no more planned updates for the old legacy 52 ESR as 52.9.0esr was the last major update.

Originally the 52.8.0esr was going to be the last major update for 52 ESR however the current ESR was moved from 59.0 to 60.0 version so the 52.9.0esr was for to have the overlap.

Support for Windows XP and Vista has been removed in 53.0 and later versions so you will not be able to use 62.0 Release and 60.2.0 ESR on WinXP and Vista.

The 52 ESR was made for Enterprise users in mind as it was a bonus in being a option for WinXP/Vista users to still have a Firefox version that still got security updates for a while longer. Support for WinXP/Vista could have instead ended as of say Firefox 53.0 released back on April 19, 2017.

It has been almost 2 1/2 years since Chromium, Chrome, Opera dropped support of WinXP and Vista back in April 2016.

The only way you can use current Firefox versions on your system is to install Windows 7, 8 (8.1) or 10. The other option is to install or dual boot with a light 32-bit Linux distro such as Lubuntu or Xubuntu or some other light options that still support the ancient 32-bit CPU's.

WinXP has been EOL since April 2014 and Vista has been EOL since April 2017. In the last couple years it was getting difficult to maintain a separate working WinXP system to do QA so be be glad Mozilla supported as long as they did.

There is no such thing as END OF LIFE (EOL). That's how corporations get rich, by getting us to throw away perfectly good computers. That's why we were fans of Mozilla, because you were on OUR SIDE, and not on the side of greedy corporations trying to control us. Oh by the way, my classic 1963 Mustang is End of Life. Time to send it to the wrecking yard.

HI, that works for a mustang but the life span of technology and computer parts is 5yrs. Regardless the decision has been made and is done. Support Volunteers can do nothing regarding your complaining.

Pete12345 said

Oh by the way, my classic 1963 Mustang is End of Life. Time to send it to the wrecking yard.

Good one, the mention of a classic automobile that was first considered a 1964 1/2 model with a April 17, 1964 official introduction date.

Look Firefox 53.0 and later which includes the current 62.0 Release and 60.2.0 ESR has dropped code in support of Windows XP, Vista and also Mac OSX 10.6, 10.7, 10.8.

Firefox 52 ESR was based on the now old Firefox 52 Release but with allowed security and stability fixes to have a stable extended support version for Enterprise users at time and not regular users.

Mozilla has no plans to build separate current versions of Firefox builds that will run on WinXP/Vista and you cannot expect Mozilla to back port security and allowed stability fixes to 52 ESR for a extended period of time past a few more updates.

In the future any sites that require TLS 1.3 support will not work in 52 ESR as it was not until 60.0 and later to have draft-23 of TLS 1.3 specification.

Windows XP came out Oct 2001 and many of the the old 32-bit CPU's people are using with WinXP came out say thirteen plus years ago.

Nvidia dropped support of 32-bit Windows, many Linux distros have have been dropping 32-bit over the years, many hardware manufactures have dropped 32-bit operating systems.

There are limitations with using 32-bit WinXP as you cannot use past 2.1TB of hard drive space yet 32-bit Linux on the same system can. Linux can fully use HTML5 player (with ffmpeg) while WinXP does not get the media feature pack that Vista and later gets from Microsoft so you cannot fully use HTML5 player (for video and audio) that is increasingly being used over Flash Player Plugin use now (to be more cross platform) without doing some workarounds that may partially fix things.