Comment 3 for bug 1901760

It looks like Firefox 83.1 on Android supports shared workers. The web staff client works for me with Firefox 83.1 on both my phone (Samsung Galaxy S9 with Android 10) and my tablet (Samsung Galaxy Tab E 32GB with Android 8.1).

It's not going to work on iOS until it works with Safari because Apple does not allow the other browsers on iOS to use their own web engines. They all must use Safari underneath.

It's possible that the shared worker code could be removed from the web staff client, but I'll leave that someone more knowledgeable than I.