The destop app supports media keys, with installation of the appropriate platform specific helpers. :) As far as I know, no sites support media keys directly be

The destop app supports media keys, with installation of the appropriate platform specific helpers. :) As far as I know, no sites support media keys directly because browsers don't make them available, even to extensions. If anyone has example sites that can do this we'd love to see them...and figure out how they are doing it. ;)