Facebook Disconnect(chrome.google.com)

  const DOMAINS = ['facebook.com', 'facebook.net', 'fbcdn.net'];

  /*
    Determines whether any of a bucket of domains is part of a URL, regex free.
  */
  function isMatching(url, domains) {
    const DOMAIN_COUNT = domains.length;
    for (var i = 0; i < DOMAIN_COUNT; i++)
        if (url.toLowerCase().indexOf(domains[i], 7) >= 7) return true;
  	  // A valid URL has seven-plus characters ("http://"), then the domain.
  }

  /* Traps and selectively cancels a request. */
  if (!isMatching(location.href, DOMAINS)) {
    document.addEventListener("beforeload", function(event) {
      if (isMatching(event.url, DOMAINS)) event.preventDefault();
    }, true);
  }