You can easily install the Fubotv/connect App on your Firestick device from the Amazon App Store. Here are the steps to do it
First, make sure your device has a stable internet connection
Go to the homepage of your device and then click on the Find option
Select the search option available on the top and then type Fubo with the help of the on-screen keyboard
A list of suggestions will appear on your screen; click on Fubo TV App and select the first app available under App & Games section
Now select the Download button to start the installation process on your device
Once the installation is complete, select the Open button to launch the App.
Now your App is successfully installed and ready to activate. The following section will show you the steps to start Fubo TV on Firestick via
https://www.fubo-connect.com/