Incompatible with Chrome and Opera?

Hey there,  my son uses both of these browsers and I noticed that Norton Online Family is not blocking content etc. I'm also not receiving emails or logs about his usage which I was previously on IE.  I tested a particular blocked site on IE and it blocked.  Is there a setting on Norton to allow all browsers to be recognised?  I love Norton Online Family but it really needs to be able to recognise all browsers imo.  Any help would be appreciated. Thanks :)