What happens to your Facebook account upon your death? Have you thought about it? Well, Facebook has. Go to “Settings,” then “Security,” and look at “Legacy Contact.” Facebook walks you through the process of designating a person to handle your Facebook account in the event of disability or death. It explains everything. In addition, it explains how you can leave a Facebook account open for memorials after your death. There is also an option to permanently delete your account, if you do not want an account after you pass away.
For more details, look here.