Google+ makes it easy to connect with your Gmail, Yahoo and Hotmail contacts, but Facebook has restricted the ability to easily import your Facebook users.

Step 1:- Open up the Friends to Gmail web app. It is located at: http://www.friendstogmail.com/

Step 2:- Click "Connect with Facebook" and type in your Facebook username and password (if not already logged in) to connect your account. Allow Friends to Gmail to access your basic information and your friends' information. You can always remove this access later.

Step 3:- Wait for the app to find all of your friends and load the information into a text box.

Step 4:- Select all of the text in the box and copy it.

Step 5:- Open up Microsoft Excel, or another program that can save comma-separated values (.csv) files. Paste everything in the box into a new document.

Step 6:- Save the document as facebook.csv in a place you will remember. Make sure to select "All Files" for document type so it's not saved as a text file.

Step 7:- Log in to your Gmail account. On the left-hand menu, select "Contacts" and then "Import Contacts".

Step 8:- In the box that pops up, choose the facebook.csv file to import. You may want to create a new group called "Facebook Friends" or "Imported from Facebook" for these contacts.

Step 9:- All of your friends should successfully import, and now you can organize them with Google+!

How to export your facebook friends into a csv or excel file

https://www.youtube.com/watch?v=ioXDUPNtHjc

How to export your Facebook friends to Google+ 

https://www.youtube.com/watch?v=KoR0lirqRWE

Source:- Youtube