This article describes the media control feature that’s available in Waterfox version 81 and above. Please update your version of Waterfox for the latest features and security updates. What is the media control feature? You control media (audio or video) playback inside Waterfox without clicking on the video or audio itself. You can now control it by pressing the hardware control buttons on a keyboard or headset, pressing the button on the virtual control interface or by sending commands via specific protocol, such as MPRIS . This depends on website developers using the MediaSession API . What platform supports this feature? You can use this feature on MacOS (OSX 10.12.1 or above), Windows (Windows 8.1 or above), and Linux (gtk-based distributions). How are media control supported? Physical hardware media control keys. Virtual media control keys, each platform has different virtual controller interfaces, which are implemented by different platform frameworks:...