Firefox and Thunderbird crash on F7.

[Andy Green]

Somebody in the thread at some point said:

> morning. The problem is still there. It crashes consistently on display
> of many pages. The one I test is Edit -> Preferences. It crashes
> immediately without going into the dialog. The error console shows:
> 
> [Exception... "Component returned failure code: 0x80004005
> (NS_ERROR_FAILURE) [nsIPrefBranch.getComplexValue]" nsresult

It looks like getComplexValue() is to do with getting your user prefs.
Try closing Firefox and Thunderbird, and then mv ~/.mozilla
~/.mozilla-old and restarting them, see if the problem is gone...

-Andy