Hi cjberry, sorry to hear about that, the update shouldn't remove anything. As a first step, could do a regular shutdown and restart of Windows to clear file locks and complete any deferred updates. It's possible Firefox wasn't able to resume in your regular profile after installing the update due to a file lock and created a plain vanilla new one. Check the Profile Manager to see whether you can switch back: type or paste '''about:profiles''' in the address bar and press Enter to load it. Can you find another profile here? If so, you can take a peek by using the "Launch profile in new browser" button. If that is your regular profile, you can use the "Set as default profile" button so it comes up regularly going forward. Any progress so far?