Samsung PN51E6500EFXZA - Manual (Page 474)

Add current site : Lets you add the
currently displayed web site to the
Approved Sites list.
Manage Approved Sites : Lets you key
in URLs to add to the Approved Sites
List and delete sites from the Approved
Sites list.
N If you turn Approved Sites on and
have not added any sites to the
Approved Sites list, you will not be
able to access any Internet sites.