Description of probleproblems exists for both firefox 3.6.13 (Fedora 14 x86_64 distribution version) and firefox-4.0b12pre.en-US.linux-x86_64 build: 20110202162900 With only one Firefox window with the single tab with the URL: http://www.bbc.co.uk/news/world-middle-east-12340082 The desktop in general, and Firefox in particular becomes extremely unresponsive for well over a minute! I have tried this several times, and each time the system becomes painfully slow in the extreme. Processor utilisation of 2 out of 4 cores goes up to the equivalent of 100% utilization of one core - top tells me that xorg is running at 99.4%. m: Version-Release number of selected component (if applicable): Build ID: xorg-x11-server 1.9.3-4.fc14 How reproducible: always 1.enter http://www.bbc.co.uk/news/world-middle-east-12340082 2.hit enter 3.wait... Actual Results: system becomes painfully slow in the extreme for well over a minute Expected Results: System should still be responsive and should take less than a minute to render or at least not cause such high processor utilisation. Additional info: $ uname -a Linux saturn 2.6.35.10-74.fc14.x86_64 #1 SMP Thu Dec 23 16:04:50 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux up to date Fedora 14 install AMD 810 quad core 64 bit 8 GB DDR3 RAM 5 * 500GB in software RAID-6 configuration ASUS M4A78T-E motherboard Bus 001 Device 004: ID 046d:0990 Logitech, Inc. QuickCam Pro 9000 see also: https://bugzilla.mozilla.org/show_bug.cgi?id=631648
Linux neptune 2.6.34.7-66.fc13.x86_64 #1 SMP Wed Dec 15 07:04:30 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux Fully patched Fedora 13 1.5GB RAM AMD Sempron(tm) Processor 3000+ single 64 bit core firefox-4.0b12pre.en-US.linux-x86_64 build: 20110202162900 Same problems with unresponsiveness and overloaded processor
F14 is no longer supported. F15 and newer include an ati driver build newer than the one referenced in the mozilla bug report as fixing this issue. Closing on that basis.