Latest Amazon Fire TV HD (2023) user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/128.6.1 like Chrome/128.0.6613.194 Safari/537.36	Mobile Silk 128	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/126.6.2 like Chrome/126.0.6478.238 Safari/537.36	Mobile Silk 126	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/126.3.3 like Chrome/126.0.6478.186 Safari/537.36	Mobile Silk 126	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/124.5.2 like Chrome/124.0.6367.248 Safari/537.36	Mobile Silk 124	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/122.6.4 like Chrome/122.0.6261.160 Safari/537.36	Mobile Silk 122	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/122.4.2 like Chrome/122.0.6261.160 Safari/537.36	Mobile Silk 122	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/122.3.1 like Chrome/122.0.6261.160 Safari/537.36	Mobile Silk 122	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/122.2.2 like Chrome/122.0.6261.119 Safari/537.36	Mobile Silk 122	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/120.5.10 like Chrome/120.0.6099.295 Safari/537.36	Mobile Silk 120	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/120.4.3 like Chrome/120.0.6099.266 Safari/537.36	Mobile Silk 120	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/120.2.3 like Chrome/120.0.6099.232 Safari/537.36	Mobile Silk 120	Fire OS 7
Mozilla/5.0 (Linux; Android 9; AFTSHN01) AppleWebKit/537.36 (KHTML, like Gecko) Silk/118.4.2 like Chrome/118.0.5993.155 Safari/537.36	Mobile Silk 118	Fire OS 7