When I switch from external speakers to Headset, Firefox (YouTube) continues to play on the external speakers (but not on the headset). Firefox remains present on the volume mixer for the EXTERNAL speakers, but does NOT appear on the volume mixer for the headphones. YouTube on Chrome is working properly. I have updated my drivers, I have "refreshed" Firefox. Basically when toggling back and forth between my external speakers (Realtek(R) Audio default Device and Headset Earphone: CORSAIR VOID PRO Wireless Gaming Headset Default Multimedia Device) Firefox is always playing on external speakers regardless.