Just thought I would post this. I have the CFS installed on a Pro3060 and all of a sudden mapquest.com would not appear correctly- images would not load and buttons did not appear and it basically made it unusable.
Turns out that the CFS was blocking mqcdn.com- the location of the images. What's really strange though- is that it was blocking it because of the 4th category of Pornography.
Anyway. Just thought I would share: need to add mqcdn.com to your custom url list and then all is good. Just confusing for a while.