Bug#623097: iceweasel: high CPU usage by Xorg on page loading when "Tabs on, Top" are off

[Francis Russell]

I was experiencing this issue quite a while back, and still am in the
iceweasel 8.0-3 package in unstable. I was wondering if the people
currently experiencing this bug could report which graphics card drivers
they're using? My experience with downgrading certain drivers and
packages seems to suggest that it might be a bug with the Xorg propriety
nvidia drivers. So if you are or aren't using these, data points either
way would be appreciated :)

Francis