How to block users, apps & invites on Facebook
While Facebook is great for connecting & keeping in touch with people, every now and again you may want to block someone.
Removing them as a friend stops them from seeing your posts but they can still message you. The trick here is to dive into your Account privacy settings and make use of the Block users feature.
To use this useful feature, click on the little cog icon in the top right of your page and select Privacy Settings. Now on the left hand side you have a stack of options, one of which is Blocking. Click on this and you are presented with the Manage blocking page.
Find the Block users settings and type in the name or email address of the person you wish to block and hit Block and that’s you, that person can no longer be your friend on Facebook or interact with you, apart from within Facebook games.