In December Facebook announced that they were working on a feature that will recognize similar pictures and suggest the names of friends who might appear in them.

“Every day, people add more than 100 million tags to photos on Facebook … Because photos are such an important part of Facebook, we want to be sure you know exactly how tag suggestions work: When you or a friend upload new photos, we use face recognition software—similar to that found in many photo editing tools—to match your new photos to other photos you’re tagged in. We group similar photos together and, whenever possible, suggest the name of the friend in the photos..”
The facial recognition has now been introduced into some areas, unfortuately Facebook forgot to ask for user permission first. You can however disable this feature so that your name is not suggested when your friends use it if you are uncomfortable withg the idea. But they will still be able to tag photos of you manually.
To opt out of Facial Recognition:
Go to the Account -> Privacy Settings.
Next click on Customize Settings (blue link at the bottom of the page)
Scroll down to the “Things Others Share” section. Look for the line that says “Suggest photos of me to friends. When photos look like me, suggest my name“. This is where you can Disable Facial Recognition.
(If this area is greyed out in your account, that means it has not been rolled out in your area yet. Keep checking back periodically as this function should be available soon.)
While your their don't forget to like us on Facebook!!
or discuss this issue in our Ph.ourms