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Old 20th July 2010, 11:24 PM
OnkelHeini Offline
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Join Date: Jul 2010
Posts: 1
firefox hangs system

everything else seems well with my FC13-x86-64 except firefox (3.6.4 and earlier versions too) VERY frequently hangs the whole system. only the mouse still working, keyboard not responding to ctrl-alt-del, ctrl-alt-function or any other key and even num-lock won't turn the led on. system is still remotely accessible through ssh so I can issue a reboot. same thing may have occurred with thunderbird but only once or twice and probably firefox was also running then. no problems so far with google chrome (but I have no flash plugin for that).

FC5-x86-32 on my old PC has never had any of these problems.

any suggestions? maybe switch to x86-32?
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Old 21st July 2010, 07:11 AM
marko Offline
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Join Date: Jun 2004
Location: Laurel, MD USA
Posts: 7,097
Re: firefox hangs system

Some people blame the new plugin isolation code that just went into Firefox 3.6.4, you could try temporarily turning off plugins entirely by starting firefox this way:
firefox -safe-mode
in your desktop's menu editor so when you start Firefox it starts in safe mode.

If the system suddenly gets better you'll have evidence that it's the flash plugin + the IPC feature that's at fault. You could then
just turn off the IPC feature in the about:config page in Firefox:
dom.ipc.plugins.enabled.libflashplayer.so false

Last edited by marko; 21st July 2010 at 07:14 AM.
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Old 21st July 2010, 07:11 AM
CSchwangler Offline
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Join Date: Feb 2009
Posts: 2,746
Re: firefox hangs system

Did you check the log files for any additional information about the problem? Maybe it has to do with a Firefox plug-in (flash?)? I don't know the state of flash on x64, but it may be worth thinking in that direction and try 32bit.
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