Facebook (FB) just update and renew their interface. Some said it nice. But some said not!. So, do you want to get back to Facebook old interface. Follow this steps :
1. Login to Facebook account.
2. Go to Account at the top right side :
3. Go to Account Settings :
4. Deactivate your account for 10 - 15 minutes.
5. Your facebook will back to old Facebook interface.