I have the tab muted when playing. But, when playing the vids in the station (hotel, restaurant, shopping center) there is about a 1 in 3 chance of it unmuting without my permission or action.
Reported this issue earlier and got a "clear cache" etc reply. Didnt help. Its an easy fix, just mute the tab again. But, annoying.
Pretty basic setup, Firefox Quantum is the browser of choice, Win7 is the operating system.