User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.1) Gecko/20060111 Firefox/1.5.0.1 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.1) Gecko/20060111 Firefox/1.5.0.1 Initially running FF 1.5 with auto-update disabled. Everything worked perfectly until today. FF auto-updated to 1.5.0.1 and after the update, all of my option / preference settings were reset. I lost all of my bookmarks, saved passwords, cookies, browser settings, installed extensions, etc. I lost everything... it's just like starting with a freshly installed version. This is a major bug / flaw. FF should not have updated at all because I had auto-update disabled. Reproducible: Didn't try Steps to Reproduce: 1. None Taken.

*** This bug has been marked as a duplicate of 193567 ***