I have a Shokz headset with volume and pause/play buttons. I watch videos on my Samsung s21+ using Firefox (more privacy, and easier to have multiple videos up with tabs comparedto YouTube app. It worked fine up till today, when the pause/play button no longer does anything. I tried restarting the phone, closing and opening the Firefox (Ff) app, force-stopping the Ff app, and turning the headset off amd on. The headset functions correctly in other apps, just not Ff. I don't want to uninstall and reinstall Ff if I can avoid it, but would that even work? I've done all I can short of that, but it still doesn't work.