content: Firefox Warning: Backup Your Profile Now (if not too late) I tried to open Firefox just now. It wouldn't open. I downloaded a new copy and installed. Normally this would just refresh a damaged copy and preserve all settings, bookmarks, cookies, etc. Instead, it opens with a page saying basically that I can only get my old profile back if I sign up for an account with them.  So everything is lost apparently because I don't deal with disreputable companies like them.     If you use Firefox migrate your bookmarks and settings to a new different browser now, or you will be sorry.