I don't know if you are asking for help to correct the problem you are having with your browser or not... - "Stopped working" seems to imply that it no longer loads at all when you launch it. - Or it could mean that the program loads, but that no web pages will connect. - What you then describe of losing saved login credentials and other information would lead me to suspect that it is loading properly and that you can connect to web pages, but that it seems to be loading a blank/default/guest profile instead of your usual profile. If you installed addon extensions as well and those are not present along with any bookmarks or saved logins, it would support what I noted of it seeming to be loading a default profile instead of your usual one. If you are asking for help correcting the problem, some details as to what degree it has "stopped working" can be helpful. If it is a case as I described above that it seems to have reverted to a blank/fresh profile, perhaps you accidentally created a new profile or are loading the program as a guest. Try to switch back to your usual profile and then remove the accidentally-created one.