Comment 40 for bug 38131

Xorg does not just hog CPU while firefox is rendering a page (this would be understandable), but even when firefox is quietly waiting for data, for example if the wireless connection has dropped out, firefox is sitting using about 5% CPU waiting for data, but Xorg is eating 40% - why?

At least with the new version, firefox itself doesn't hog so much CPU time while waiting for data from the network interface.

Ubuntu 7.10 (PPC) Apple PowerBook G4 ATI rv350 FOSS xorg driver - Firefox 3.0