FireTV support is built in to flirc. Please see the FireTV - Harmony guide if using a harmony remote.
Otherwise, please go te the FireTV controller. There are only 11 buttons, hit the Go button, and you will be walked through the pairing process.
After pairing, if flirc doesn't work, then ADB Debugging needs to be turned off on your FireTV. First head to
Then make sure ADB Debugging is OFF
Although the FireTV stick is supported, it requires cabling and is otherwise considered an advanced setup, at this time, the flirc team does not recommend the fireTV and flirc combination.