How to Invite All Friends to Facebook Group, Page with One Click

Step 1

Click “Suggest to friends” on application profile page or “Invite to friends” on group, fan page or events page.

Step 2

Right click on any friend and click “open in new tab”

Step 3

You will land on a page which will only show suggestion window
At this point, paste the following code on to the address bar where the suggestion window is displaying:

javascript:elms=document.getElementById(‘friends’).getElementsByTagName(‘li’);for(var fid in elms){if(typeof elms[fid] === ‘object’){fs.click(elms[fid]);}};

Or

javascript:fs.select_all();

Step 4

select all friends then OK .

Or  using chrome extension known as Facebook Invite All

After you have installed this extension you will notice a a new button “Toggle all” on the suggestion or invitation window.