Having Facebook on the active tab makes CPU use for firefox and Xorg spike, using a a combined 70-80% of one core on a Core 2 Duo T5500. Moving to another tab makes both processes return to normal.
The high CPU usage does not seem to come with a related memory leak.
To test that the bug is on firefox and not on Xorg, i installed Opera and ran facebook on it. No signs of the bug were observed in Opera.
Confirmed.
Having Facebook on the active tab makes CPU use for firefox and Xorg spike, using a a combined 70-80% of one core on a Core 2 Duo T5500. Moving to another tab makes both processes return to normal.
The high CPU usage does not seem to come with a related memory leak.
To test that the bug is on firefox and not on Xorg, i installed Opera and ran facebook on it. No signs of the bug were observed in Opera.