Facebook Make Friends List Private
Step 1: Login to your Facebook account.
Action 2: Currently most likely to your Timeline/Profile web page.
Action 3: Click the Friends option which is under your cover photo. It will certainly open your a checklist of all of your friends.
Step 4: Currently click Manage switch on top right alongside the + Find Friends button. It is pencil like symbol.
Tip 5: Select Edit Privacy. This will open up a new home window where you could manage your personal privacy settings for your friends.