Facebook? Rated 5 out of 5 stars

A great addon, a must-have every time I install Firefox. However, I am confused by why Facebook (IP: 31.13.72.20) shows a question mark for a flag and says that it's a "New or Internal Network", with a Country Code of XX !!!

This review is for a previous version of the add-on (2.2.0.1-signed.1-signed).