If your Facebook account is public, your details are available for everyone to see. If you’re privacy-minded, you may want to consider changing your settings.
Simple Way To Hide Your Friend List in facebook. following steps shows how to hide your friend list in facebook
1 open facebook in any browser (or) in app.
2 if you aren’t signed into Facebook, please sign in with your email address (or phone number) and password before continuing.
3 After Login to your Facebook account
4 Go to your Profile page
5 Tap on where three horiontal lines are placed , where the yellow line circled.
6 after that click on account settings,it takes you another place.
7 after that tap the ” privacy” this option near the top of the screen
8 In the below image you see “who can see your friend list” click on this.
9 click on “only me“, it will restrict your friends list to your viewing only.