In the address bar, type '''about:crashes'''<enter>.''' Note:''' If any reports do not have '''BP''' in front of the numbers, click it and select '''Submit'''. Using your mouse, '''mark''' the most '''resent 7 - 10''' crash reports, and '''copy''' them. Now go to the reply box below and '''paste''' them in. -------------------------- The crash report did not give a reason or flag a bad program. Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift><br> ''(Mac Options)'' ''' key, and then starting Firefox. Is the problem still there?

FF crashes even in Safe Mode. I did a clean install and it is working again.

That was very good work. Well Done. Please flag your last post as '''Solved Problem''' so other will know.