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Date: Sat, 07 Jun 2014 20:10:35 +0100
From: Chris Whitehouse <cwhiteh@onetel.com>
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To: freebsd-ports@freebsd.org
Subject: Re: Firefox chokes up for several seconds... frequently
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On 06/06/2014 21:38, Christian Weisgerber wrote:
> On 2014-06-04, Chris Whitehouse <cwhiteh@onetel.com> wrote:
>
>> I have experienced firefox and/or xorg apparently freezing for several
>> seconds which seems to be due to loading a page with a large image.
>
> That's a well-known problem.  It can be worked around by setting
> MOZ_DISABLE_IMAGE_OPTIMIZE=1 in the environment before starting
> firefox.
>
>> This is on 10.0-RELEASE, firefox-27.0.1,1, xorg-7.7.
>
> It isn't even specific to FreeBSD.
>
> Mark Kettenis (OpenBSD) analyzed the underlying problem, but I can't
> remember where he posted it.  Here's a related comment by him:
> http://lists.x.org/archives/xorg-devel/2014-March/041541.html
>

Thanks for the heads up. In fact I've set gfx.xrender.enabled to false 
as suggested elsewhere and that works.

Chris