It would be great if Amazon Music (https://music.amazon.de/ for Austria and Germany) would be supported so playback can be controlled.
Yeah, it would be great! For India: https://music.amazon.in/
From what I can tell Amazon Music still uses Flash, even, no way we can control this.
Working with recent 1.4 update, looks like it was also using a JS Audio() object. You need to enable "advanced media controls" for that to work, though. *** This bug has been marked as a duplicate of bug 398261 ***
Awesome, thanks! I can confirm it works even though it just displays "Amazon Music - Millionen Songs und Fußball live" as title (but it's not really important)