Facebook login log missing browser data

You should consult the help center.

There are three types of content on your Wall, and you can control who can see them by following the instructions below.

Posts your friends leave. Posts, comments, and other things your friends leave on your Wall are controlled by a group of settings in the "Sharing on Facebook" section on the Privacy Settings page. To adjust these settings individually, follow the "Customize settings" link and scroll down to the "Things others share" section.

Posts you create. Status updates, photos, links and other things you post are controlled by the "Posts by Me" setting in the "Sharing on Facebook" section on the Privacy Settings page. Follow the "Customize settings" link to adjust this setting individually. Keep in mind the "Posts by Me" setting is a just default for things you post. You always have the option to adjust the privacy for individual posts before you share them by clicking the lock icon directly from the Publisher.

Recent Activity. These stories are determined by the privacy setting of the content itself. For example, if someone would already be permitted to see a particular photo and comments, then they would also be able to see the Recent Activity story about you making a comment on the photo. While you cannot completely turn off recent activity stories, you can remove a particular story by clicking the "Remove" button that appears to the right of the story after you move your mouse over it.

[Source - Who can see my Wall? ]

In simpler terms your wall can only be seen by you and whatever friends you allow to see your wall.

Your news feed is what everyone allows you (based on your settings in their privacy page) to see.

You can find all Extended Permission Here publish_stream will be required if the site want to post something on your wall, otherwise will throw an error with message

(#200) The user hasn't authorized the application to perform this action