Facebook

1.Log on to your Facebook account.

2.Click on the “Account” on the top right and then click the 4th option “Privacy Settings”.

3.In the section “Connecting on Facebook” click “View Settings”.

4.You will see 7 options there. One of them would be “See your friend list” and there would be the options on how you can modify the visibility of your friend list.

When you click that option at the right side, you can change it to other 3 options(Friends and Networks, Friends of Friends, Friends only). You can even customize the visibility manually

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