Hi Chris. Unless I am mistaken, recent Ubuntu versions seem to default to gstreamer 1.0 by default. Although gstreamer 0.10 is also installed in parallel, the different gstreamer versions are not parallel linkable. Firefox currently has support for using the system gstreamer 0.10 for H.264 HTML5 video playback, but not for using the system gstreamer 1.0 for H.264 HTML5 video playback. This is being worked on in https://bugzilla.mozilla.org/show_bug.cgi?id=806917
** Bug watch added: Mozilla Bugzilla #806917 https://bugzilla.mozilla.org/show_bug.cgi?id=806917 ** Also affects: firefox via https://bugzilla.mozilla.org/show_bug.cgi?id=806917 Importance: Unknown Status: Unknown ** Summary changed: - Firefox H.264 support + Firefox H.264 HTML5 video support -- 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/1260788 Title: Firefox H.264 HTML5 video support Status in The Mozilla Firefox Browser: Unknown Status in “firefox” package in Ubuntu: New Bug description: This is a tracking bug only. Please do not post comments. Firefox 26 has turned on the media.gstreamer.enabled preference by default. This enables H.264 playback with gstreamer 0.10 if the relevant gstreamer plugins are installed. Firefox support for gstreamer 1.0 is being worked on and is expected to arrive soon. To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1260788/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

