YouTube was removed from Fire TV. Apparently amazon is scared of competition. So silly, so petty.
Edit - Amazon has allowed YouTube back on the FireTV. I have been using these for around a year now and I am generally happy with them. Some of the apps are horrible, buggy, crash a lot. The stick is frustratingly slow at times with long loading times. It crashes from time to time, requiring a hard reset. But, it’s a great piece of technology and has allowed us to cut the cord on our hefty cable bill. Just needs more computing power and better regulation of third party apps.