Get *your* data contact out of Facebook, whether they want you to or not. You gave them your friends and allowed them to store that data, and you have right to take it back out! Facebook doesn't own my friends.
This it`s what a very downloaded extension from google web store promise to do.
And it did, but for a limited time. Facebook now closed the application.
There is another way to export your facebook friends to google plus, using yahoo mail.
1 : Go to https://login.yahoo.com
2 : Click the : "Create new Account"
3 : Create your account.
4 : Click on “Contacts” button then click on “Import Contacts” button.
5. When you will see something like this :
Share with Yahoo!
Do you want to share your contacts with Yahoo!
6. Now goto https://plus.google.com/u/0/circles/find and click on Yahoo!