safe web search icon missing

The green check box on safe search went missing. I read all the forum results, tried what I could, then ultimately rang Norton. What I was given was that the cookies need to be left in play on all browsers for this to work. In other words, if you are using Google Chrome, you must go to settings, select "Never show instant results" and magically the safe web icon returns. I asked why this happened. The response was "There is a glitch in the system and it has been logged".