My computer got hung up today when I was running Firefox, so I stopped Firefox using Alt-Control-Delete. Then I re-started Firefox, and it asked me which “profile” I wanted, which was strange because it had never asked me that before. I entered “Default Profile”, and then Firefox started up just as if it had never been run before! All of my bookmarks are gone now and all of my preferences are set to the default values! I tried looking in the Help menu, but I couldn’t find anything at all about “profiles”. I guess “profiles” must be something for multiple users using the same computer, so that each user can setup his/her own “profile”.
But now how do I change the profile back to the original one?