Add your all friends in a group at once via mobile (java) Trick

step 1:- download and install facebook application (if not installed) from HERE =>
http://adf.ly/khaev

step 2:- open it and log in with your account.

step 3:- now click on group icon present in 3rd row, now open the group in which you want to add your friends.

step 4:- click on GROUP INFO > add members

step 5:- mark your all friends and click on done
now you can add your all friends in the group.

Please share with your friends.