Comment 6 for bug 1030638

The Facebook sound is a Wave file. I tryed but don't find de configuration files of fogger
I read on the internet to enable web audio in the others browser to play Facebook chat sound
Look this and check please

http://webkitgtk.org/reference/webkitgtk/stable/WebKitWebSettings.html#WebKitWebSettings--enable-webaudio

Thanks