Facebook's Active Sessions feature allows social networkers to see a list of locations and times their account was recently accessed from, as well as the type of device was used.
The location is identified by the IP address used to access your account. From here, Facebook members just end the session at the click of a button. This is ideal for those that have used a friend's device to check their account and forgotten to log out again, removing the temptation for your friend to post silly status updates, but also to stop unauthorised access to your profile by hackers.
It's worth noting, the location may not always be correct. Facebook regularly tells me that when I access my account from my home-PC running Windows XP the location is Manchester, when in fact I'm in Kent.
From the drop down menu next to the Home icon in the top right-hand corner select Account Settings.
Choose Security settings from the far left-hand side of the window and scroll down to the section marked Active Sessions.
Press the Edit button to display your active sessions. To see the specific IP address of a location, just hover your mouse over the location.
To end a session, simply press End activity to the right-had side of the session.