Firefox is not working/responding after I open it. No buttons will work. It has been updated twice plus an uninstall and install. I am on PinguyOS 10.10 64bit. The same Firefox is working on Ubuntu 10.04 32bit and Windows7 32 bit. After install, Firefox was the same including my custom addons, should it not be a clean install? Install was done thru synaptic. The OS has been shutdown with no help for Firefox.
migrated from askubuntu.com Oct 10 '11 at 6:02
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Could be your video driver messing up the new Fx hardware acceleration function that's turned on by default. Especially likely if you use ATI proprietary driver.
The way to turn it off is:
That fixed the issue for me.
I'd try starting firefox from a terminal if you haven't to see if you get any useful errors. strace firefox may help too.
Also as already mentioned try renaming your profile so you start with a clean one to see if the issue is in your profile.