I note from your system details that you have firebug installed, and list your plugins as too-many, also that you have already obtained a crash ID. I know this is probably stating the obvious, but it probably helps to find out whether it still crashes in [[safe mode]] .<br/> Also be aware: there is a [https://bugzilla.mozilla.org/show_bug.cgi?id=633427 bug - 633427] at present, that starts up plugincontainer processes when cookies/data are cleared, '''even''' if the plugins are disabled. If you have a lot of plugins it may be worth watching activity of plugin container not just Firefox itself. If you have crash IDs the next step will be obtaining crash signatures for recent crashes. * see [[firefox crashes]]