Firefox 52 no longer working on XP

[NotHereToPlayGames]

Try the PortableApps Portable Legacy 52 and see if it launches.  It will not affect other Firefox installs/profiles.

https://portableapps.com/apps/internet/firefox-portable-legacy-52

[NotHereToPlayGames]

If it DOES launch, then you should be able to REPLACE all of the .exe/.dll/etc root dir files/folders of your "installed" version and it should now also launch.

[NotHereToPlayGames]

If it does NOT launch, then clench your fists, pound one sternly but in full control of anger level on desktop but make sure you miss keyboard and mouse, grab something in the other hand and controllably throw something without breaking it or anything it hits, raise your voice level approx 15 decibels (whereas 30 decibels is the increase of a raging uncontrolled shout), and shout out this phrase, "Curse You, Malwarebytes, You Did This!"

[NotHereToPlayGames]

Oh, and I didn't think about asking this earlier, but when you tried to uninstall Malwarebytes and it resulted in your computer REBOOTING itself (prompting a Safe Mode uninstall of Malwarebytes), was Firefox OPEN when Malwarebytes uninstall crashed your system into a reboot?

[Dave-H]

No, Firefox was not open when I uninstalled Malwarebytes.
I hardly ever use it now.

Thanks for the link to the portable version, I will give it a try and report back.