Hello!

Try this:

https://support.mozilla.org/en-US/kb/reset-preferences-fix-problems

Tried this thank you - unfortunately still crashing shortly after restarting

Refresh Firefox {web link} is a LAST RESORT ! !

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options) key, and then starting Firefox. Is the problem still there?

While in safe mode;

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers/letters, 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.

If you can't get Firefox to open, you will have to do this the hard way. https://support.mozilla.org/en-US/kb/mozillacrashreporter Open the file browser / explorer on your computer. Note: You may have to enable Show Hidden Folders / Files. Enter this in the address bar;

Windows: %APPDATA%\Mozilla\Firefox\Crash Reports\submitted Win 7/Vista: C:\Users\<username>\AppData\Roaming\Mozilla\Firefox\Crash Reports\submitted Win XP/2000: C:\Documents and Settings\<username>\Application Data\Mozilla\Firefox\Crash Reports\submitted

Mac OS: /Users/<username>/Library/Application Support/Firefox/Crash Reports/submitted Linux: /home/<username>/.mozilla/firefox/Crash Reports/submitted

Copy the last 5-7 Recent File Names in the folder. Post the information in the reply box below.

The crash report flagged these programs;

Rooksbas.DLL = Windows

RapportUtil

RapportTanzan370

RapportGP

IPSLdr32.dll = Symantec Intrusion Detection

IPSEng32.dll = Symantec Intrusion Detection

Perform a System File Check to fix corrupted system files http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

Download the current full installer for your Rapport programs. Then remove Rapport from your system. Reboot the computer.

After, run Firefox (do not install Rapport for now).

This could be a problem with Trusteer software (RapportTanzanxx.DLL).

Make sure that you have the latest updates of your Trusteer software. You can try to contact Trusteer for support.

• http://www.trusteer.com/support/rapport-installation-links
• http://www.trusteer.com/support/report-problem
• http://www.trusteer.com/support/submit-ticket

Try to update or uninstall and reinstall Trusteer Rapport and if that doesn't help then disable/stop the program for now.

• Start Menu > Programs > Trusteer Rapport > Stop Rapport

Mac:System Preferences -> Other -> Rapport -> Stop Rapport