Steps To Block someone from seeing your profile, wall and photo on Facebook If someone harassing you after added him/her in Facebook (FB). What you can do is to block that person on FB. It is part of the Facebook privacy and security policies. Once you have block that person, he/she is no longer able to view anything about you in FB (unless he/she open another new a/c and add you again) . 3 very simple steps to block a person in Facebook, Check it out :) 1. Click “Account” on the top of your Facebook and then Click “Privacy Settings”