hello, could you provide your latest few submitted crash reports? please enter about:crashes into the location bar, copy the latest few report ids from there starting with bp- & paste them here into a forum reply. this will give us a better understanding what may be triggering those crashes.

bp-b3d68673-d726-4311-bf00-72ffe2160308

bp-ee463d44-0ddf-443d-aab3-9773c2160308

bp-5c30fd02-0a64-45f9-b2b6-2df5e2160308

bp-8ead3dae-02d7-4248-9155-dda5e2160308

Is this what you need? Many thanks

thank you for following up. unfortunately those crashes appear to be caused by trusteer rapport which is running on your device and hooking into firefox - please check that you are fully updated there or temporarily disable/uninstall that software for the moment.

please also get in contact with trusteer's support which are usually very quick to respond and fix issues like this: https://trusteer.secure.force.com/PKB/articles/en_US/FAQ/browser-crashes

Thank you very much for your prompt help which has worked and very much appreciated.