Greasemonkey (Userscript) Hide the Facebook LoginDialog in the bottom part of the page - Press on Raw to install

fb_logindialog_hider.user.js

// ==UserScript==
// @name        FB LoginDialog Hider
// @namespace   loginhider.thezero.org
// @include     https://*.facebook.com/*
// @include     http://*.facebook.com/*
// @version     1
// @grant       none
// ==/UserScript==

// If you don't have a facebook account or you are not logged in,
// when you visit a facebook content page (ex. A Profile or a Post)
// a BIG and UGLY LoginDialog will appear on the bottom of the page.
// This few lines of code will detect whenever the Dialog appear
// and after a blink it will disappear immediately.
var logindialog = document.getElementById("pagelet_growth_expanding_cta");
var interval = window.setInterval(detect, 1000);
console.log("Facebook LoginDialog Hider");

function detect() {
  if(logindialog.children[0].style.height != ""){
    logindialog.style.display = "none";
    console.log("Done!");
    clearInterval(interval);
  }
}

thanks it works :D

no longer work