Well... this one's curious. It's not for the same reason as SMF has, that it doesn't work. The popup has a broken object in it - and there are params present, so I'm not entirely sure what the problem is but it is broken in IE9 (though the direct link works fine)
The popup is also too small in both FF and IE9 causing it to have scrollbars (which has an... interesting... effect if you try to click on the scrollbars)
Also, the fact that the popup closes on click does cause the CAPTCHA to close in FF instead of playing.
The popup is also too small in both FF and IE9 causing it to have scrollbars (which has an... interesting... effect if you try to click on the scrollbars)
Also, the fact that the popup closes on click does cause the CAPTCHA to close in FF instead of playing.