Firefox 19 vs large images

[Warren Block]

On Sun, 3 Mar 2013, Jan Beich wrote:

> naddy at mips.inka.de (Christian Weisgerber) writes:
>
>> Viewing large images has become cumbersome with the switch from
>> Firefox 18 to 19.  Am I the only one to notice this?
>>
>> Wikipedia's high-resolution pictures of the day are great for this:
>> https://upload.wikimedia.org/wikipedia/commons/e/e9/Bison_skull_pile_edit.jpg
>
> Try setting MOZ_DISABLE_IMAGE_OPTIMIZE=1 in environ(7) or

That seems to eliminate the lag for me.  (Very limited testing.)

> disabling gfx.xrender.enabled in about:config.

This did not.