To install Kodi on Amazon Fire TV, you can follow these steps:
1. Go to the "Settings" menu on your Fire TV and click on "Device" or "My Fire TV".
2. Scroll down and click on "Developer options."
3. Turn on the "Apps from Unknown Sources" option.
4. Go back to the Fire TV home screen and click on the "Search" icon.
5. Search for "Downloader" and install the Downloader app.
6. Open the Downloader app and enter the URL "https://kodi.tv/download" in the address bar.
7. Scroll down to the "Choose your weapon" section and select "Android."
8. Click on the "ARMV7A (32BIT)" version of Kodi.
9. Wait for the download to complete and then click on "Install."
10. Wait for Kodi to install and then click on "Done."
11. Go back to the Fire TV home screen and click on "Your Apps & Channels."
12. Find Kodi in the list of installed apps and click on it to launch.
Note: It's important to download Kodi only from the official website to ensure you are getting the genuine version. Installing Kodi from other sources may result in security issues and potential harm to your device. Also, keep in mind that Kodi can be used for both legal and illegal activities, so make sure to use it responsibly and legally.