Your connection is now secure with the fastest and best vpn for firestick. Go to setup and add the firestick ip address which we noted down in step 2 above. Step 4: open the app and enter your login credentials which you created while buying the expressvpn subscription. Click on local apps menu in the apps2fire app, and search for terrarium tv app.Having bought a subscription, you can download this or other directories on our website. To download the file, click on the button below.