I was so enthusiastic when I pressed play/pause immediately after installing this extension. But so disappointed when I pressed previous/next to see that it doesn't work. Other media keys act as if you had pressed play/pause. Too bad, could you please do something to fix this ? Please don't force me to install Evil-Google-Chrome ;) (in Chrome it works out of the box :/ )
Windows 10, Firefox v66 (quantum), standard good old (more old actually) Logitech keyboard.