This is great step for allowing more user control / detection over sound within Firefox.
I recently open sourced MuteTab (http://www.github.com/jaredsohn/mutetab). If MuteTab were to also work on Firefox (it builds with OpenForge right now), it should be possible to get audio indicators working within Firefox, at least for HTML5 audio/video and for Flash that is supported by Shumway.
Although perhaps a native implementation of what I just described is in the works.
I recently open sourced MuteTab (http://www.github.com/jaredsohn/mutetab). If MuteTab were to also work on Firefox (it builds with OpenForge right now), it should be possible to get audio indicators working within Firefox, at least for HTML5 audio/video and for Flash that is supported by Shumway.
Although perhaps a native implementation of what I just described is in the works.