- log in to facebook here
- Go through Account settings >> Security and disable "secure browsing"
- go to group what you want to add memebers
- If you using Firefox as your web browser click Ctrl+Shift+K
- If you using chrome click F12
- now you can see a window appearing on the below , select "console" from it
- Then copy & paste this code in to the code box after the codes.
Finally click enter key.If you follow steps correctly you can see adding your friends to group.It will take few seconds to add your all friends to facebook group.If you have any trouble comment it.
Enjoy !! Don't forget to share this on facebook and twitter for your friends.