Sorry! Firestick is not currently on our supported devices list so we cannot recommend using it. However, while not recommended, technically if it has a browser, you should be able to access the stream at http://stream.roughnrowdybrawl.com/.
You can use one the Rough and Rowdy iOS or Android apps to cast your screen to your Fire TV device. You must be on the same WiFi network as your connected device and tap the “Chromecast” button in the top right of your apps video player to view all available devices on your network.
Alternatively some customers have had luck using the built-in Silk browser for Fire TV or downloading Firefox for Firestick TV. For more information, visit Firefox.com. Make sure third party cookies are enabled as well.
Note: For the full list of available devices, visit How to watch Rough and Rowdy?