Firefox Not Responding
Running Windows 10, latest updates installed. Latest updates of Firefox installed.
Whenever I switch tabs or switch between programs, I am constantly getting 'Mozilla Firefox- Not Responding' in a blue bar at the top of the browser along with a white page (where previously I'd been reading a website) and a gear cog in grey in the middle. I sometimes have to wait up to 5 minutes for the browser to respond again.
I also have the problem that Firefox locks up if I open the Skype app, so I can either use Skype or use Firefox, not both together.
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What's your computer system and Firefox version?
It sounds like the computers CPU is being overworked.
Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.
A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?
https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding
https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster
https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix
https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding
Hi Fred, The computer is actually at my parents house so I don't have access to it until the weekend. The computer is a fairly generic bought from an independent supplier, so doesn't have a brand name (like Asus, Acer etc) It was originally purchased as a Windows 8.1 machine and upgraded to Windows 10. I will get as much info as I can and start in safe mode as you suggest when I am there at the weekend, sorry that's not much assistance to help you solve the problem. Thanks for your help so far!
That's fine by me.