It has been quite awhile since this happened, but I have missed using Firefox. I was prompted to download an update when I was on the browser website. When I downloaded the new version at that time, it no longer worked. I tried everything to get it to work again, but nothing helped. I probably even corrupted the profile.

What do I need to uninstall or delete to get a new version to work?  I am using Windows 11 on an HP desktop.