Sometimes media keys do not work anymore on my Ubuntu *Pegasus* computer

Encounter the same issue on Linux Mint, maybe it is due to my current https://dessinanimes.com/episode/american-dad-saison-1-vf-episode-1/?server=drive9 in Firefox, but as it does not trigger any action, should pass this signal along to VLC in my opinion.

If I remember correctly on Windows or more precisely with Windows Media Player when hovering the app in the taskbar, was having buttons for previous, pause/resume and next audio, it would be a workaround for the moment. Note that I do not have such graphical buttons on Linux Mint.

Related to Benjamin_Loison/firefox/issues/70.