Enabling secure browsing in facebook helps you to use https which will helps you to send all information encrypted.
For any user of facebook whom security is a greater concern may use this service so as to stay secured always.
to enable facebook secure browsing, click the drop link next of home menu in your Facebook home, and click
Account Settings.
In account settings, click
security menu on the left side,
In security settings page, click
secure browsing then you will be able to enable secure browsing by clicking the check box.
Click Save Changes and you are done.
