• Update your flash player to the lastest version.
• Update your graphics card drivers to the lastest version or disable hardware acceleration.
• Do you have addons installed? If yes try to run firefox in safe mode and see if it still crashing. If it stop crashing then maybe on of your addons is the problem. Now enable one addon at time and to find which addon make firefox carsh.
• Close antivirus that running the same time with firefox and see if it still crashing.

If you have submitted crash reports then please post the IDs of one or more crash reports that have this format:

• bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

You can find the IDs of the submitted crash reports on the about:crashes page.

• You can open the about:crashes page via the location bar, like you open a website.

See:

• http://kb.mozillazine.org/Mozilla_Crash_Reporter
• https://support.mozilla.org/kb/Mozilla+Crash+Reporter

See also:

• http://kb.mozillazine.org/Firefox_crashes
• https://support.mozilla.org/kb/Firefox+crashes