A:AnswerHey Scanner - I have not been able to download Xfinity Stream app on any of my Amazon Fire TV devices (sticks, pendants, cube, or TV). I believe the only device we're able to download to is Roku. I can confirm the Xfinity Stream app works perfectly on my Roku +4K stick. I'm sure there's blog posts re: adding Xfinity to Amazon, but you'll likely need to jailbreak your Amazon Fire TV (which will void any warranty, right?).