Download CastBuddy chrome extension. This extension finds videos on the web sites you are browsing and allows you to play them on your Chromecast device. and install in your Google chrome browser. This is Direct CastBuddy Crx download for Chrome it is also called CastBuddy offline CRX for chrome Download. This CastBuddy is used to This extension finds videos on the web sites you are browsing and allows you to play them on your Chromecast device.