You can try to disable hardware acceleration in Firefox.

• Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
• https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

The crash report flagged these programs;

lpxpcom.dll = # LastPass

Rooksbas.DLL = Windows

rapportutil.dll = Rapport@ Trusteer Ltd

RapportTanzan370.dll = Rapport

msiltcfg.dll = Windows Installer - Unicode

dui70.dll = Windows

gdiplus.dll = Microsoft GDI+

dnsapi.dll = DNS Client = Windows

winmm.dll = Windows Multimedia

mswsock.dll = Microsoft

combase.dll = Microsoft

rpcrt4.dll = Windows; Remote Procedure Call Runtime

RapportGP.dll = Rapport

Also, your memory is running high;

Total Virtual Memory 4294836224

Available Virtual Memory 3418894336

System Memory Use Percentage 83

Available Page File 3110375424

Available Physical Memory 705232896

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

Check your Rapport programs for updates.

Do the same with LastPass. If there is still a problem, disable LastPass.

Hello,

It is a crash signature with "Messagepump", please disable Trusteer (Trusteerraport) and check if the issue persist, otherwise remove Trusteer and check it again.

thank you

The problem seems to have been Rapport Trusteer. Uninstalled and crashing has stopped. Am now going to install the latest version, fingers crossed it won't case more crashing...