I just used rbox's Xposed FireTV mods to get Firestopper working again on 184.108.40.206_r1. IMHO, it's an under-rated use of this xposed module, as I searched the thread and didn't find any post about it.
You don't need a 'launcher' app when you can set any app to launch with the home key (or any key) in key_codes.xml!
Is there any chance you can explain it step by step? I already tried to install the module but after installing, enabling and restarting the device it stuck at the animated Amazon logo. With the exposed installation is everything OK because I'd already installed some modules but this one is really harsh.
My plan is to replace the Amazon launcher with the xbmc launcher.
Maybe someone has an idea what's wrong.