once i installed NoScript the CPU usage remained low on the above sites i mentioned, which means the bug is caused by these java scripts.
my graphics card is geforce 6600 LE. i have installed the nvidia-glx-new drivers (also tried with nvidia-glx). i have compiz-fusion running and it goes smooth with no problems. the CPU usage problem occurs with or without compiz-fusion running, and this problem does not reproduce when i use Opera browser on these sites. -- Firefox causes massive Xorg CPU usage https://bugs.launchpad.net/bugs/38131 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs