Honestly I used several minutes to find how to contact support on your page. The thing was that “Ads by google” helped me to miss that link. Link was under the ads, and so I missed it..well next time I know where to find it 🙂
This is weird but now it works for me too FF 4.01..
Firefox 4.0 to 4.01 update also broke 1.9.2 version of this plugin. 🙁
(For example Chrome is still working fine on my site.)
I know this is not the support site, but couldn’t find http://www.justin-klein.com/projects/wp-fb-autoconnect anyplace to post this..