The equivalent GStreamer 1.0 package to gstreamer0.10-ffmpeg is gst- libav1.0, which does have an enabled H.264 decoder. Ubuntu 13.10 "Saucy Salamander" has gst-libav1.0 1.0.10-1ubuntu1 and Ubuntu 14.04 "Trusty Tahr" has gst-libav1.0 1.2.3-1.
GStreamer 0.10 H.264 support was first enabled by default on Linux in Firefox 26. On earlier Firefox versions you will need to go to about:config and toggle the media.gstreamer.enabled preference. However upstream Firefox has only just updated this support to GStreamer 1.0 and it wont be released until Firefox 30.0 (approx June 6th) - see https://bugzilla.mozilla.org/show_bug.cgi?id=806917 ** Bug watch added: Mozilla Bugzilla #806917 https://bugzilla.mozilla.org/show_bug.cgi?id=806917 -- 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/1280905 Title: firefox on ubuntu 14.04 does not play mp4 files Status in “firefox” package in Ubuntu: Confirmed Bug description: On xubuntu 14.04 the package gstreamer0.10-ffmpeg_0.10.13-5_amd64.deb is not available, so I could not use mp4 h264 files in html5 tags. I used the .deb package from ubuntu 13.10 and after an apt-get -f install everything works fine. I don't know why the gstreamer0.10-ffmpeg package is not available anymore, it looks like firefox could use gstreamer1.0-libav. I don't know if the h264 decoder is enabled in gstreamer1.0-libav package. I hope that this bug report will help people get html5 video working. Tested with firefox 25 and 29. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1280905/+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
