[pbhjpbhj]

My FF was the crashiest lump of pudding ever - seriously it was crashing a few times an hour ... until I started with a new profile and moved across my various .sqlite files (eg places.sqlite, cookies.sqlite, etc.).

Now? Completely crash free AFAIR.

I used http://kb.mozillazine.org/Transferring_data_to_a_new_profile... as the basis of what to copy, though there are other such pages like http://support.mozilla.org/en-US/kb/recovering%20important%2... which might help.