When I use Fb.ui to publish to a user's facebook wall, Firefox blocks hundreds of popups

I'm asking the user to publish something to their wall using FB.ui as described in the answer to Publish on users facebook wall. It works fine in Chrome, but when I try to use it in Firefox, it blocks the popup开发者_Go百科 window. This would be fine, but facebook continuously tries to open up another popupwindow when it is denied, resulting in something like this:

How can I stop facebook from being so persistant?

Is this on an external site implementing the Facebook JS SDK or a canvas app? If it's the former, do you have 3rd part cookies disabled in FireFox?