Please post a crash GUID that you can find on the about:crashes page via the location bar.

If you have submitted Breakpad crash reports then post the IDs of one or more Breakpad crash reports (bp-xxxxxxxx-xxxxxxxxx-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/Breakpad (Mozilla Crash Reporter)

Hi cor-el

and thanks for your reply! I'm totally bamboozled here as to what to do - sorry! What should my next step be? Ta!

You can open the about:crashes page via the location (address) bar on the Navigation Toolbar, like you open a website.

• https://support.mozilla.com/kb/Mozilla+Crash+Reporter

A crash report GUID looks like this bp-xxxxxxxx-xxxxxxxxx-xxxx-xxxxxxxxxxxx).

See also:

• http://kb.mozillazine.org/Breakpad (Mozilla Crash Reporter)

Hello Callum,
Since a few days we have a lot of crashes with Trusteer Rapport. If you have this program, try to disable it and see if that stops the crashing.
You can stop Rapport using Start Menu > Programs > Trusteer Rapport > Stop Rapport
You can ask their helpdesk when an updated version of their product will be made available or, if you don't need this software, uninstall it.
http://www.trusteer.com/support/en/report-problem