thanks for asking.

From the screenshots, it looks like your issue stems from what you entered at Behaviour Factory > Specification and Metadata > Application recognition > Bundle identifier.

This field currently contains the path of the FireFox app on your Mac, whereas it should contain the bundle identifier for FireFox. To enter it, remove the fields current contents (/Applications/FireFox.app), click into some other field (so that field no longer has focus), then drag and drop FireFox.app onto that field. You should now see

org.mozilla.firefox

in that field, which is the bundle identifier that's used by Remote Buddy to check whether the app is installed. If that bundle identifier is wrong, Remote Buddy won't load the Behaviour.

Once the field contains the correct bundle identifier, use "compile, test-drive and install" to replace the old version of your Behaviour with the corrected one.

Hope that helps.

Best regards, 
Felix Schwarz