An idea for better media control in Firefox.
At the moment, if you need to quickly turn off audio playing on a tab, you need to find it and then right-click to mute the tab. There are no further controls available.
In Chrome, when you play a video or audio, a button appears on the toolbar.
Clicking this button shows a small panel of media control buttons allowing you to pause or skip tracks and even features some artwork. It would be amazing to implement some version of this in the Firefox toolbar.