There is workaround for people trying to find a permanent fix (like I do). The program called HOT CORNERS works on both WinXP and Win7 (I guess nobody is using Win8, at least the ones that know anything). You set lower left corner (for example) as screensaver disabled and it doesn't start.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/434476 Title: screensaver starts while playing HTML5 videos Status in The Mozilla Firefox Browser: Confirmed Status in “firefox” package in Ubuntu: New Status in “firefox-3.5” package in Ubuntu: Triaged Bug description: Binary package hint: firefox-3.5 karmic alpha6 + updates - click on a .ogv video link - after watching some time, screensaver starts. ProblemType: Bug Architecture: amd64 Date: Tue Sep 22 08:45:53 2009 DistroRelease: Ubuntu 9.10 NonfreeKernelModules: nvidia Package: firefox 3.5.3+build1+nobinonly-0ubuntu2 PackageArchitecture: all ProcEnviron: LANG=de_AT.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-10.34-generic SourcePackage: firefox-3.5 Uname: Linux 2.6.31-10-generic x86_64 To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/434476/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp