Facebook allows users to easily connect with other accounts as friends. The maximum number of friends allowed per Facebook account is 5,000. If you have found that your friend list has grown too large, you may decide to remove some of the friend connections. A more efficient alternative to deleting friend connections one at a time is using the "Edit Friends" menu to manage your entire Friend List on one page.
Sign in to your Facebook account, and go to your Home page.
Click the "Friends" link on the left navigation menu.
Click the "Edit Friends" box near the top of the screen below the search bar.
Click the "X" to the right of each friend you wish to delete. Click the "Remove from Friends" button on the confirmation window.