Hi Max, Congratulations, at least you made a stab at solving the problem. I think a lot of users used to glance at that KB article ([[firefox crashes]]) and give up trying! Hopefully the crash instructions will be further modified soon, (some of us consider the following is an [/kb/Firefox%20crashes/discuss/1855 omission] that needs correcting) have a look at this article for an explanation of how to get the crash ID from your OS even without using firefox: * http://kb.mozillazine.org/Breakpad#Location_of_crash_reports The XP OS is likely to use smoke and mirrors to make it look like you have a totally separate installation of firefox for each account, but normally you have the one set of (most) program files, and then for firefox separate [[profiles]]. So this indicates the problem is likely to be in the profile of the problem account, or down to a plugin, malware or other issue relating to that account. <br/>(I note you have already scanned for malware with MSE, that should detect a particular trojan that is a top cause of firefox 6 crashes) If you create a new clean profile in that account hopefully it will solve the crash problem, you can then address the issue of copying settings, bookmarks. passwords etc back. BUT before attempting that ensure that you disable all plugins, ([[safe mode]] does not disable plugins) if you have not already done so. Some plugins may not show up in Firefox's list, you may need to look at the OS program lists. I note you mention banking, a particular utility ''IDvault'' (I think Comcast supply it) has been causing crashes. Are you using IDvault ? <br/> (IDvault should be fixed soon bug684748; version 1.0.627 may have been fixed, but standalone version 5.9.627 has not yet been fixed ) See also * [[troubleshooting plugins]] * [[firefox crashes when you open it]]