Add gstreamer components to Linux Lite 2.6 to fix broken HTML5 Firefox Audio

[Gooplusplus]

Solution to fix broken HTML5 MP3 and M4A Firefox audio in Linux Lite, Ubuntu, Ubuntu-Gnome, Ubuntu-Mate and Lubuntu

Test sites: (1) https://html5test.com/
(2) http://hpr.dogphilosophy.net/test/
(3) http://www.gooplusplus.com/jukebox

SYNAPTIC - add gstreamer1.0-libav (or gstreamer1.0-plugins-ugly)
or Ubuntu Software Center - add Gstreamer extra plugins

BTW, Xubuntu and Kubuntu Firefox HTML5 audio already works fine and plays MP3 and M4A files (instead of downloading).

[Gooplusplus]

Updated testing:

Ubuntu-Mate did not need gstreamer1.0-plugins-ugly to fix HTML5 audio. Adding gstreamer1.0-libav was enough to fix.

This was not enough to work in Linux Lite.

There is probably a better solution but adding gstreamer1.0-plugins-ugly was a working temporary fix for Linux Lite