all my media buttons(stop, skip back, pause/play, & skip forwards) pause/play the supported apps listed in the description of witch I only use one consistently and only works at all if firefox is the focused app so if I am playing games or do anything that is not in the browser the music is playing in it does not work at!!! DO NOT DOWNLOAD!!!!

Play/pause only

not working with youtube

it works pretty good but frequently i'll pause a you tube video and then come back an hour or so later and when i press play again it starts but then immediately pauses. this doesn't occur with other plugins alike... it does work on a complete different browser lets say you opened fire fox opened youtube then played a video then minimized it opened a whole new firefox window and went shopping opened 4 tabs and then decide you want to pause the music it did work to pause from that window while youtube was minimized so that much was awsome i just wish it worked while everything was minimized.

goooooooood

Nice ! I was looking for a way to play/pause youtube videos via my bluetooth headset and this does the job perfectly.
Infortunately I'm not able to use the next/previous track inputs.

Works perfectly on MacOS, just make sure you set up the shortcuts.

Play/Pause only

Thanks for the update! Is there a chance to include the mixcloud handler?

Does not work, when firefox is not on top (so what sense are the media keys for then? i want to control the music, when it's in the background!)
Does nothing else than pause/play.
I could also use the space instead ...

ps: problems are well known since v56 and we are on v74 already without fix ...

Same problem as another user, this only allows me to pause or unpause.

No skip or last track functionality.

Corsair K70
-Google Play Music
-Youtube

not working, it only pause or mute sounds...

Не работают медиа клавиши в Яндекс Музыки.
Если настройки не делать, то любая медиа клавиша на клавиатуре кроме паузы/воспроизведения ничего не может сделать.
Если сделать настройки и сохранить, то клавиши не работают.

Works fine, but the browser window still needs to be selected for it to work.