I'm almost certain it's a problem with the x86_64 build but I don't really have any way of figuring this out on my own. Would an strace or other such thing help?
** Description changed: In the Ubuntu Firefox build (Mozilla/5.0 (X11; U; Linux x86_64; en-GB; rv:1.8.0.4) Gecko/20060608 Ubuntu/dapper-security Firefox/1.5.0.4), setTimeout/setInterval with low delays (<50ms?) end up firing extremely slowly. This does NOT occur in the official mozilla.org build of Firefox. The following pages exhibit this behaviour: http://slashdot.org Click on one of the slider menus, it will move down a few pixels and then hang. http://msdn.microsoft.com/vstudio/express/default.aspx The header images should fade from one to another smoothly, but they only start fading and then the fade becomes very jerky and slow. - http://blgames.y-hosting.net - News ticker in upper-right corner starts sliding and then becomes very jerky and slow just like the MSDN page. + http://www.deviantart.com + Click "Categories", then click on one of the options in the menu. The animation will often lock up right in the middle. This does not occur using the exact same Firefox user profile with the official Firefox build. -- setTimeout with low delay values don't fire correctly in Dapper Firefox https://launchpad.net/bugs/52179 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
