I get this irritating notice on the screen that I need to install extensions for Norton 360 (toolbar, safe search and home page). It tells me I need to install them or I won't be protected while browsing Chrome. Is this something I need to install? I thought 360 should protect us while surfing the web. I have Chrome installed and am on a Windows 8.1 system and I have Norton 360. Can someone clear this up for me?