Firefox crashes
Cannot start Firefox (even in safe mode). I continue to get a window asking me to quit or restart. I have an option to report the error to Mozilla. I've tried that, but the report is not sent. I've tried restarting Firefox, tried restarting my Mac. Nothing works.
Opaite Mbohovái (1)
Create a new profile as a test to check if your current profile is causing the problems. See Basic Troubleshooting: Make a new profile
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins"
If that new profile works then you can transfer some files from the old profile to that new profile (be careful not to copy corrupted files)
See http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox