To authorize Xfinity on your Amazon Fire Stick, start by ensuring your Fire Stick is connected to the internet. Then, navigate to the "Apps" section on the Fire Stick home screen. Search for the Xfinity Stream app and install it. Once installed, launch the app and select the "Get Started" or "Sign In" option. You'll receive a code on your TV screen. Using a smartphone or computer, visit
www.xfinity/authorize and enter the code displayed. Follow the prompts to sign in to your Xfinity account. After successful authorization, you can enjoy streaming Xfinity content on your Amazon Fire Stick hassle-free.