Okay, thank you for your reply and explanation. I understand why I need to create a Facebook app. What I don’t understand is *how*.
It looks like creating the Facebook app involves copying code into my site. Problem is, I don’t know how to do that (last time I tried, I temporarily broke my site). The whole reason I wanted a plugin was so I wouldn’t have to mess with code.
Could you explain for me how to add the Facebook app code into my WordPress site? I am running the Wilhelmina (also titled Rosemarie) theme on the Genesis Framework. I’m using WordPress 4.2.2.
Thanks again!