Facebook apps not loading

Some Facebook apps are not loading, even though they did work before. They were working fine until the most recent update(S) of Comodo. I get a white screen like the one below:

I am using Comodo firewall with Bit defender antivirus
with Google chrome, Comodo Dragon and Firefox
and Windows 7

Is this a comodo iss ue or can I configure Comodo with these pages to make them load?