It appears that, about a week ago, Flixster dropped support for the Amazon Fire TV. The app is still compatible with the Fire TV Stick, but can oddly no longer be installed on the Fire TV. This is significant because the Flixster app alows you to watch UltraViolet content on a Fire TV. UltraViolet is the cloud-based library for movies and television shows, run by an alliance of film studios and retailers. The service is in direct competition with Amazon’s Instant Video library. Hopefully the loss of Fire TV support for Flixster is just a temporary hiccup, like we’ve seen in the past, and not a diliberate move by Amazon to block UltraViolet access on their flagship media streamer. For the time being, if you need to, you can download the latest Flixster APK file from here and sideload it onto your Fire TV. If you already have Flixster installed on your Fire TV, it should continue to work, but you will be unable to re-install it if it gets deleted.
7/26 @ 8:53am Flixster has responded to my inquiry and simply said that “the Flixster app on Fire TV is no longer available.” I interpret that as meaning its removal was not a mistake. My guess as to why it’s still available on the Fire TV Stick is that, since the app is featured on the Fire TV Stick box, they may be contractualy obligated to support the Stick for the time being.
7/26 @ 3:36pm Looks like someone at Flixster took notice and re-enabled support for the Fire TV. As of right now, the app is once again available for both the Amazon Fire TV and the Fire TV Stick.