Popup message that Norton Family blocked attempt to visit a site that we havent tried to visit

Randomly, we will get a pop up message stating that Norton Family blocked an attempt to visit...example site and it was blocked because it is considered to be a ...example category.

 

The sites they list are sites we have never heard of much less attempted to visit.

 

I have run a full system scan, including a malware scan and nothing was found but it continues to happen.

 

We are on a windows 7 using Chrome.