The URL
www.watchthinkvote.com/select-a-topic/voting-rights isn't working for me at all. I get a 404 error. Is that the right page that I should test, or did something change?
From the error, my guess is that there is still some other extension that's adding an og:url tag, in addition to JFBConnect, but without seeing the page, I can't really determine the issue.
Let me know, and we'll gladly help investigate.
Thanks,
Alex