Titanium TV is another good app to use. If you already have Filelinked installed. Just enter 19686454 code and you can fast forward the video below to around the 7 min point. Feel free to watch the entire video if you need assistance.
Below is a list of the latest apps to use
As of November 10th, 2018:
How to install Cinema HD on Amazon FireTV using FileLinked Code.
Watch this video to install Cyberflix.
Re-Arrange Your Apps
Uninstall Games & AppsTo uninstall games and apps from your Amazon Fire TV:
Allowing Third Party Applications
Connect your wireless headphones for private listening
Check out Beast TV - https://vaderstreams.ca/beast-tv
For about $20 a month you get Beast IPTV.
Beast TV offers 1600+ HD channels, 24/7, Sports, Movies & More! Beast IPTV allows 3 connections.