Perform the following steps:
Note: The following instructions use the Blue Coat Facebook page as an example:
www.facebook.com/bluecoatsystems
If you install this policy, users can access the Facebook page www.facebook.com/bluecoatsystems and view all media on the page, but are blocked from accesing other Facebook pages.
If you wanted to have this rule match certain users or groups, you could add a Layer Guard in the Layer that will only allow these certain Users or Groups to match these rules: