You can manage or rearrange the way apps display within Your Apps
From Your Apps & Games on the Home screen, use your remote to highlight an app in the row, then press the Menu button. Select Move or Move to Front to move the selected app to where you want it in the row.
For additional options, open the fullscreen grid view for Your Apps & Games by selecting See All at the end of the row. Or, press and hold the Home button on your remote to open the Quick Access menu, and select Apps.
Use your remote to highlight an app, and press and hold the Select button. You can then use the directional keypad on your remote to move the app to where you want it to display in the grid.
Uninstall Games & AppsTo uninstall games and apps from your Amazon Fire TV:
Select Settings > Applications > Manage Installed Applications from the Fire TV menu.
Select the app you want to uninstall.
Select Uninstall, then follow the on-screen instructions.
You can also uninstall apps from Your Apps & Games. Use your Fire TV remote to highlight the app you want to remove, then press the Menu button to view more Options, including Uninstall.
Individual app settings or in-app items may be lost when you remove certain apps from your device.
Some Amazon apps (including Prime Photos and Amazon Music) can't be uninstalled. However, you can move them around within Your Apps & Games, so they don't display at the front.
Allowing Third Party Applications
Select Developer Options
Select ‘Apps from Unknown Sources’ to ON
Select ‘ADB Debugging’ to ON
Connect your wireless headphones for private listening
Select Controllers and Bluetooth Devices
Select Other Bluetooth Devices
Follow the instructions to pair your bluetooth headphones