There is no extension or app for the Chrome OS used in a Chromebook. You must run Chrome remote desktop app in the Chrome browser on a PC that has been already proven to work with DISHANYWHERE. Set the sound to stereo ONLY. Anything else and there will be NO SOUND sent from the PC via remote desktop. On the Chromebook connect to that PC that has remote desktop running in Chrome browser. Choppy and can't go full screen but it's better than missing your game or show when on the road when you don't want to risk your expensive laptop or iDevice on the trip.