The text below from the setting page needs to be changed as the procedure no longer matches what is on the Facebook website.
Go on your facebook app page (Applications > Developer > My Applications) click "Edit Settings". Then click "Connect". Make sure that the "Connect URL" matches your domain exactly.
There is no "Connect" to click or "Connect URL" field.
Comments
Comment #1
authentictech commentedSpelling correction
Comment #2
ferdi commentedThis is fixed in version 2.x
thanks!