When playing music on music.youtube.com, if I navigate away from the tab, by either moving to a different tab or opening a different application the music pauses. This happens consistently with two different Firefox profiles. I admittedly have a quite a few plugins installed, so I tested this in a private window and this issue does '''not''' occur. I attempted disabling the obvious plugins UBlock, 'I don't care about cookies', and Tampermonkey without any success. I also tried using a different user-agent without any success. edit: removed erroneous error information