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References: <20120330022806.GA30761@shell.eskimo.com>
Date: Sun, 15 Apr 2012 11:29:42 +0200
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From: "Ronald Klop" <ronald-freebsd8@klop.yi.org>
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Subject: Re: FreeBSD 8.3 and 9.0 freeze with firefox
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On Fri, 30 Mar 2012 04:28:06 +0200, Joseph Olatt <joji@eskimo.com> wrote:

> Hi,
>
> Starting with 8.3, I've been experiencing FreeBSD freezing up completely
> after using firefox for a while. Thinking the problem would go away if I
> upgraded to 9.0, I did that and I am still experiencing the same
> freezing up. The mouse pointer freezes, the keyboard freezes (caps lock
> light will not come on; Ctrl-Alt-F[1-10] does not work etc.). The only
> way to get the system back is by pressing and holding down the power
> button.
>
> The problem seems similar to: kern/163145
>
>
> There is nothing in /var/log/messages to indicate a problem. Output of
> pciconf -lv and uname -a are at:
>
> http://www.eskimo.com/~joji/wisdom/
>
> Anybody else experiencing similar freeze ups with 8.3 or 9.0 while using
> firefox?

Since Firefox uses all kinds of GPU stuff nowadays. Is it possible it  
locks up your graphics card?
I suggest trying to turn of GPU hardware acceleration in Firefox.

Ronald.