Hi Thank you for your question and for providing that crash ID - really useful and helps us to find a solution. I have had a look at that report, and I believe that the crash is being caused by the Websense software you are using not being quite up to date. You can read more about this, together with a couple of suggested solutions [https://support.mozilla.org/en-US/kb/old-versions-websense-cause-startup-crashes-firefo here]. I hope this helps, but if not, please come back here and we can look into a different solutions for you.