When using Firefox 26 on Ubuntu 12.04.1 with the gstreamer 0.10 plugins installed, I get this (see attached picture). When using Firefox 26 on Ubuntu 13.04 with the gstreamer 1.0 plugins installed, the top centre box (H.264) was red with an exclamation mark.
When using Firefox 26 on Ubuntu 12.04.1 with the gstreamer 0.10 plugins installed, I get this (see attached picture). When using Firefox 26 on Ubuntu 13.04 with the gstreamer 1.0 plugins installed, the top centre box (H.264) was red with an exclamation mark.