I now have the option to Login with Facebook in My Settings and the first time I went through it, it seemed to go. But when I go to a thread and click the Facebook link at the bottom, I get the same window with Warnings that I did before. There is still a Login with Facebook link in that windown and I don't get the error after I click on it anymore but it just takes me back to the same My Settings Facebook setup page with the Login with Facebook link. Now when I click on the link, nothing happens.
Edit: I usually use Chrome so I tried IE just to see. I wasn't logged in to HB at all so I tried loggin in via Facebook and got the following error:
[#1090091] An error occurred while trying to authorize this Facebook connection