You should update your harmony software. I was able to locate a build in profile for Flirc. Use xbmc as the model when prompted. This isn't home free, you would still need to remap with Flirc to match with controls that will work both on fire tv and xbmc. I used the wiki site for key mapping. The harmony software also has context menu command build in so you don't have to do any of the command line stuff.