I got exactly the same issue. I just can’t connect my default facebook account to the plugin. I also have a test account on facebook, that one was authorized immediately.
Reading your comment, nrajesh, I played around with the https settings but that didn’t change a thing. The only differences I see so far are the languages and development apps. It also made no difference wether the account was set up in English (US) locale or another one. My default Facebook account (the one I want to connect with the plugin) has a Facebook app connected to it and the test accounts doesn’t. I’m not sure if that makes any difference.
Some help on this topic would be great!
I should have read the rest of the forums first. This one helped me solve the connection issue.