From the FireTV home page, go to Settings> Device .
Now open Developer options and then turn on Apps from Unknown Sources option .
Return to the Home screen and open Search.
Search for Downloader . Click on the downloader in the search results to go to the app home page. Now click on the download button to install it on FireTV or FireStick.
Launch the Downloader app during installation and enable JavaScript from settings.
Go to the Browser option and enter the following URL – https://tweakbox.site and press Enter. It will start to download the TweakBox FireTV Apk
How to access TweakBox on FireTv
First, go to the Firestick home screen .
Now you need to long press your button home and you will see a pop-up window .
Click on the applications icon and continue .
Scroll down and tap the TweakBox icon .
Now click on move in the lower right corner, just drag and drop on the three lines. Now the TweakBox will be moved to the home screen.