How to restore your address book after Facebook messed it up
Recently, Facebook changed everyone's email to an @facebook.com address. Even if you fixed the problem, you may find that Facebook changed all of the contacts in your phone, too. Here's how to fix it.
A lot of us sync our Facebook accounts with our address books on our smartphones, so we always have up-to-date phone numbers, email addresses, and pictures for all of our friends. However, with Facebook changing everyone's email to @facebook.com last week, blogger Rachel Luxemburg (and a lot of other people) found that those changes were synced down to their phone—meaning they don't have any of their friends' actual email addresses anymore. Just the facebook.com ones.
None of us at Lifehacker have noticed this problem, but we do have a few ideas about how to fix it. In fact, this will fix any similar problem you have where your contacts get messed up. Here's what you need to do.