If you have the time try the troubleshoot mode to help figure it out - add ons are often the cause
https://support.mozilla.org/en-US/kb/troubleshoot-firefox-crashes-closing-or-quitting
If you have the time try the troubleshoot mode to help figure it out - add ons are often the cause
https://support.mozilla.org/en-US/kb/troubleshoot-firefox-crashes-closing-or-quitting