Having bad hanging problems?
I've used Firefox for the past 3 years and have never had a problem. This past week, Firefox has been hanging and not responding. I've made sure that I have all the current updates...but the problem still exists. I've been using Internet Explorer the last 2 days and have absolutely no problems.
Alla svar (1)
Try in Diagnose Firefox issues using Troubleshoot Mode and look at Basic troubleshooting and also Firefox hangs or is not responding - How to fix.
Sorry I can not give an immediate answer it could be one of many things, read the linked articles please and post back with how you get on, someone will try to help if you you do not solve it yourself with that information.