// ==UserScript==
// @name           close-the-menu-bar-with-one-esc-keystroke.uc.js
// @version        1
// @description    Escキー1回でメニューバーとメニューの両方を閉じる。
// @include        chrome://browser/content/browser.xhtml
// ==/UserScript==

(function () {
  "use strict";

  const menubar = document.getElementById("main-menubar");

  menubar.addEventListener("popuphidden", (event) => {
    setTimeout(function () {
      if (!menubar.querySelector("menu[open]")) {
        menubar.dispatchEvent(
          new KeyboardEvent("keydown", {
            altKey: true,
            code: "AltRight",
            key: "Alt",
            keyCode: 18,
          }),
        );
      }
    }, 0);
  });
})();