Check if your Fire TV can screen mirror. To check, hold down the Home button on the Fire TV remote. If you see a Mirroring icon, your device is compatible. Connect your Fire TV and the device you want to mirror to the same Wi-Fi network.
How do I mirror my phone to my fire TV?
Download and install the Cast to TV app on your phone. Connect the phone and Fire TV to the same WiFi network. Now, open the app and wait for it to automatically detect your Fire TV device. Once detected, tap the device name to start screen mirroring.
Why doesn't My Fire TV have screen mirroring?
Go to System Preferences > Display > Check “show mirroring options in the menu bar when available”. Now, you should see an Airplay icon on the top right side of the screen, Click on that, it'll bring up few AirpPlay options.. Select, Mirror Apple TV option to mirror the screen on to Fire TV Stick.