What does this do?
When you authenticate with Facebook, we will convert your friends list into a nice, Gmail-compatible CSV. You can import this file into Gmail, and Gmail will add your friends to your contacts.
To do this, we ask for permissions to get friends' birthdays, locations, bios, work history, and hometowns. All of the work is done in your browser, so our servers never download anything. This data is yours, and yours alone.
Does this download email addresses and phone numbers?
Short answer: no. Long answer: Facebook doesn't provide developers with a way to retrieve this data. I am looking into ways of circumventing this restriction though and will provide an option soon. Please follow @FriendsToGmail or @dwlz for updates.
So why would I want to use this?
Well, maybe you'd like to search which of your friends worked at a certain place, or those who live in New York. Or perhaps you like having your friends' birthdays on your Google Calendar. Maybe you just want all your data to be in Gmail. The reasons are plenty.
What if it doesn't work for me?
Send an email to firstname.lastname@example.org.
How do I create my file?
If you're on Windows, I'd recommend you not use Excel to create the file. Instead, open Notepad, paste the text into there, and save the resulting file as a CSV.
If you're on Mac, open TextEdit, go to Format -> "Make Plain Text", paste the text into there, save that file as a Unicode (UTF-8) file, and give the file a name with like "friends.csv".
How do I import my file?
Instructions are below. After clicking "Import...", upload the file Friends to Gmail generated from your friend list.