I'm having trouble with JFBConnect it seems only in IE. When trying to login through the login module through Facebook, the box will popup asking for username/password, then after clicking to login, the box will go blank, with the following URL showing in the box title bar:
static.ak.fbcdn.net/connect/xd_proxy.php...9f44e%5C%22%7D%22%7D
However, the box never goes away (it stays centered on the screen over the webpage), and the webpage never gets me logged in.
Using FF, I don't have any problems (once I click logon, the box goes away, and I am successfully logged into the web site. Also works as expected in Safari and Chrome.