+ click on MY ACCOUNT (top of page + click on ACCOUNT OVERVIEW + click on MY ACCOUNT + click on PREFERENCES + click on ACCOUNT SETTINGS (lower right) + click on ACCOUNT PREFERENCES + click on IMAGE MANAGEMENT + click on USE HTML UPLOADER (last option in that section)
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .