Could not load Norton confidential

I'm using google chrome.  Recently I have been getting the message "could not load Norton confidential".  For some reason it is happened recently on many of the website that I have sentup as favorites.  The web page comes up extreme slow and you cannot click on any links like it is frozen.  However when I click on other tab in goole chrome and go back it is running normal and it is no longer frozen.  Does anyone know what the problem or issue is?

 

thanks