I just got a new computer, and I'm trying to copy-and-paste a profile over from the old computer to the new one, but this doesn't seem to be working. Firstly, when I click on the Firefox icon on my new computer (Windows 11), the profile manager doesn't start up, so I can't choose the old profile. I've tried copying over all of the old files into the new profile folder, and that didn't work, either. What's going on?