I love this from the first second a agreed it.
The only thought I have is to add a configuration to enable this on specific domains only.

Works as they say

nice

굿이네요

Nice addon, Good to work with multiple tabs without interrupting media(video,mp3)streaming in background in firefox.

it is stopped for next song to play half when I listened to music in the auto playlist of YouTube.please can you fix it,thank you!

Works great!

讚

Awesome feature... Super liked

good

Yes, some videos do not play in the background in Firefox for Android. But you forgot to make this addon available for Android...