777784 - Olympics logo in about:home get my CPU overloaded because of animated (moving) css (image)

Status: RESOLVED DUPLICATE of bug 774508

(Firefox :: General, defect)

Description

[Aymeric]

Attachment: top + about:home

Hi all,
I have a computer running Ubuntu, but I think the OS doesn't matters.
When I open the about:home, FF is using about half of my CPU just for displaying the Olympics flame.
This is not critical, since I don't stay on the about:home long time, but that's a bit annoying.

By the way, I've read that an other user said that his notebook overheating when he left on this page more than 3 minutes (because of the animation). (source: http://www.geckozone.org/forum/viewtopic.php?t=106985&p=699356 (in French).

Maybe you could add an option to allow users to do not display the animated logo (or make an about:home-nologo or something like that).

Thanks for reading,
Aymeric.

Comment 2

[Matt]

Updated summary for clarity.

Comment 3

[Matt]

(In reply to Chris More [:cmore] from Bug 777889 comment 1)

> Can you verify that the animation stops and the CPU lowers after 5 minutes
> of not moving the mouse within the about:home window?

Yes that works; after I started moving the mouse it started back up but that is probably expected.  Switching tabs also stops the computation.  Either way, the computation is bad enough that I won't use about:home because of the moving image.  I think putting it on the first run page would be better but that is me.