Amazon Fire Sticks Block App Sideloading

Amazon has begun restricting app sideloading on its new Fire TV devices, marking a significant departure from previous Fire OS versions. Starting with the Fire TV Stick 4K Select released in October 2025, all future Fire TV Sticks will operate on Amazon's proprietary Vega OS. This new operating system explicitly prevents the installation of apps not available through the Amazon Appstore. The change is partly motivated by a desire to combat piracy, which has been a persistent issue linked to jailbroken Fire Sticks, allegedly costing billions of dollars annually.

Vega OS, a Linux-based system, offers Amazon greater control over its hardware and software ecosystem. This allows for features like advanced AI integration and the blocking of applications associated with pirated content, a move welcomed by anti-piracy groups. While the new security measures are in place for consumers, developers can still register their devices to enable sideloading. Amazon has stated that current Fire OS devices will not be updated to Vega OS.