Great add-on just what I wanted huge respect to the people responsible for making it but I have to report an issue. Since I started using new phone a couple days ago YouTube mix playlist won't work when screen is off. I use honor play Android version 188.8.131.521 and Firefox version 68.1.1 add-on version 1.5 . I tried clearing cache from Firefox, clearing data from Firefox then reinstalling add-on, just removing and installing add-on, reinstalling Firefox nothing works. Please help 😢😢😢.
FYI: while the screen is on everything works fine either when I'm in another tab or in another program.