"Support for H.264 on Linux if the appropriate gstreamer plug-ins are installed" https://www.mozilla.org/en-US/firefox/26.0/releasenotes/
I test in Virtual Machine with and in about:config gstreamer.enabled=true, now. need gtremaer plugins-bad and plugin-ugly -- 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/1051559 Title: Build Firefox with GStreamer support Status in The Mozilla Firefox Browser: Fix Released Status in “firefox” package in Ubuntu: Triaged Status in “iceweasel” package in Debian: Fix Released Status in “firefox” package in Fedora: Unknown Bug description: Building Firefox with GStreamer support would provide support for a lot of websites that use h264. To build Firefox with GStreamer support you should use the "--enable-gstreamer" option. To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1051559/+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