PasteAndGo.uc.js

// ==UserScript==
// @name         Paste And Go
// @namespace    http://www.xuldev.org/
// @description  Adds 'Paste and Go' menu to the context menu in Location bar.
// @include      main
// @author       Gomita
// @version      1.0.20090810074113
// @homepage     http://www.xuldev.org/misc/ucjs.php
// ==/UserScript==
//
// v1.0.20090810074113 : Firefox 3.5 対応
//

document.getElementById("urlbar").addEventListener("popupshowing", function(event) {
  const eltID = "pasteandgo-menuitem";
  var menupopup = event.originalTarget;
  var refChild = menupopup.getElementsByAttribute("cmd", "cmd_paste")[0];
  var canPaste = refChild.getAttribute("disabled") == "true";
  var menuitem = document.getElementById(eltID);
  if (!menuitem) {
    var pasteAndGo = function(event) {
      goDoCommand("cmd_paste");
      //handleURLBarCommand(event);
      gURLBar.handleCommand(event);
      menupopup.hidePopup();
    };
    menuitem = document.createElement("menuitem");
    menuitem.id = eltID;
    menuitem.setAttribute("label", "Paste and Go");
    menuitem.setAttribute("accesskey", "G");
    menuitem.addEventListener("command", pasteAndGo, false);
    menupopup.insertBefore(menuitem, refChild.nextSibling);
  }
  menuitem.setAttribute("disabled", canPaste.toString());
}, false);