You will need to install the following packages: gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav
** Tags added: vivid -- 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/1445702 Title: firefox unable to play h264 video Status in firefox package in Ubuntu: New Bug description: Firefox on a fresh install of 15.04 is unable to play h264 video. Totem and chrome have no problem. youtube.com/html5 says your browser does not support h264, mse, or vp9. As a result, some videos on youtube can not play in firefox ( but are fine in chrome ). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1445702/+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
