Yes, you got it right : the file generated in Precise plays ok in Firefox (on Precise, Trusty, Windows, Android etc). You can try by yourself by clicking on the attachment. But the file generated in Trusty does not play on Firefox (at least on Trusty), even if it does in Totem, VLC, and Chromium. You can also try the attachment.
I forgot to mention that the video codec is VP8, and audio codec is Vorbis -- 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/ubuntu/+source/firefox/+bug/1323822/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
