@ schneid
Good point. I was talking specifically about the Harmony Ultimate being compatible (no need for FLIRC for basic navigation). If you have a ONE then it sounds like you will need FLIRC..
@ Hill16
I'm not sure I fully understand that issue you're having, but either way, there is no shutdown option for the Fire TV that I am aware of, short of unplugging it
. The closest thing is putting it to sleep, but to achieve that, there needs to be a built in AFTV remote function for it (for example, force restart is done by holding Play and OK button together for 5 seconds). If there was such a function, then you could map that to the Harmony remote, but I don't believe there is.
I know that if you have a standard keyboard plugged into the AFTV that has a Sleep/Shutdown button (like many Logitech keyboard), then that works and puts it to sleep. There may be some way to map that to a Harmony remote button using FLIRC, but I have no experience with this. Check the links posted above or maybe search/ask on the FLIRC forums.
Of course you can always do it the long way. From the main menu, go to Settings > Systems > Sleep.