How do I make my Facebook completely private to non friends?
Click on the “Friends” selection box beneath “Control Your Default Privacy.” Click on “Manage Past Post Visibility.” Click on “Limit Old Posts” to limit your archived posts to friends only.
How do I stop the public seeing my Facebook profile?
Click the “Who can look up your profile by name or contact info?” drop-down menu and select “Friends of Friends” or “Friends” to limit the people who can view your Facebook profile. This hides your profile from being visible in public searches on Facebook or from search engines like Google.
How do you make it so no one can click on your profile picture Facebook?
What you need to do is change the privacy setting of your profile pic to viewable by “Only Me”. That means your friends and the general public will only be able to see the thumbnail version of your profile pic, they will not be able to click on it and like it or comment on it.