I have same problem with my MP4 encoded on Ubuntu 14.04 : http://ikilote.net/Galeries/Autres/Divers/test_20140627.mp4 http://ikilote.net/Galeries/Autres/Divers/test_20140627.webm
(Webm works in Chrome, but MP4 works without sound, all are unplayable in Firefox) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1323822 Title: Firefox can not play some WebM videos generated by avconv on Trusty To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1323822/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs