Confidential blocking sites with Facebook links?

I have been frustrated by the fact that I have been getting the "phishing site detected" message for any site with a Facebook link, including sites I have regularly visited since installing Confidential, including those from just a few days ago. I even got the message when attempting to use the Norton "live chat" function!

 

I am running Confidential version 1.3.5f10 on OSX 1.6.8, using Firefox 18.1 as my browser.