(async data => CustomizableUI.createWidget({
	id: "FFTools",
	label: "FFTools",
	localized: false,
	onCreated(btn) {
		var doc = btn.ownerDocument;
		var n = nn => doc.createXULElement(nn);

		btn.type = "menu";
		btn.setAttribute("image", "data:image/png;base64,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");

		var popup = n("menupopup"), dummy = n("menuitem");
		popup.toggleAttribute("context");
		dummy.n = n;
		dummy.render = this.render;

		popup.append(dummy);
		btn.prepend(popup);

		var tt = btn.appendChild(n("box")).appendChild(n("tooltip"));
		tt.btn = dummy.btn = btn;
		tt.setAttribute("onpopupshowing", "return !(this.btn.open = true);");
		btn.setAttribute("tooltip", tt.id = btn.id + "-tooltip");
	},
	render() {
		var {n, btn, parentNode: popup} = this;
		this.remove();

		for(var o of data) {
			if (!o) {
				popup.append(n("menuseparator"));
				continue;
			}
			var {lab, url, img} = o;
			var menuitem = n("menuitem");
			
			menuitem.setAttribute("label", lab || url);
			if (img)
				menuitem.className = "menuitem-iconic",
				menuitem.setAttribute("image", img);
			menuitem.url = url;
			popup.append(menuitem);
		}
		popup.setAttribute(
			"oncommand", 
			"gBrowser.selectedTab = gBrowser.addTrustedTab(event.target.url);"
		);
	}
}))([{
	url: "about:config",
	img: "chrome://browser/skin/developer.svg"
},{
	lab: "about:config old",
	url: "chrome://global/content/config.xhtml",
	img: "chrome://browser/skin/developer.svg"
},{
	url: "about:support",
	img: "chrome://global/skin/icons/info.svg"
},{
	url: "about:performance",
	img: "chrome://global/skin/icons/performance.svg"
},{
	url: "about:memory",
	img: "chrome://global/skin/icons/warning.svg"
},{
	url: "about:profiling",
	img: "chrome://devtools/skin/images/profiler-stopwatch.svg"
},{
	lab: "about:debugging",
	url: "about:debugging#/runtime/this-firefox",
	img: "chrome://browser/skin/developer.svg"
},
null,{
	lab: "Библиотека",
	url: "chrome://browser/content/places/places.xhtml",
	img: "chrome://browser/skin/library.svg"
},{
	lab: "О сборочной конфигурации",
	url: "about:buildconfig",
	img: "chrome://devtools/skin/images/settings.svg"
}]);

(async data => CustomizableUI.createWidget({
	id: "WinFolders",
	label: "Some Label",
	localized: false,
	onCreated(btn) {
		var doc = btn.ownerDocument;
		var n = nn => doc.createXULElement(nn);

		btn.type = "menu";
		btn.setAttribute("image", this.image);

		var popup = n("menupopup"), dummy = n("menuitem");
		popup.toggleAttribute("context");
		dummy.n = n;
		dummy.render = this.render;

		popup.append(dummy);
		btn.prepend(popup);

		var tt = btn.appendChild(n("box")).appendChild(n("tooltip"));
		tt.setAttribute("onpopupshowing", "return !(this.btn.open = true);");
		btn.setAttribute("tooltip", tt.id = (tt.btn = btn).id + "-tooltip");
	},
	render() {
		var {n, parentNode: popup} = this;
		this.remove();

		for(var o of data) {
			if (!o) {
				popup.append(n("menuseparator"));
				continue;
			}
			var {lab, file, img} = o;
			var menuitem = n("menuitem");

			menuitem.setAttribute("label", lab || file.leafName);
			menuitem.className = "menuitem-iconic";
			menuitem.setAttribute("image", img || "moz-icon://file:///" + file.path);
			menuitem.tooltipText = file.path;

			menuitem.file = file;
			popup.append(menuitem);
		}
		popup.setAttribute(
			"oncommand", 
			'var {file} = event.target; file.exists() ? file.reveal() : Services.prompt.alert(null, "Not found!", file.path);'
		);
	},
	get image() {
		var sym = Symbol.iterator;
		data[sym] = () => {
			delete data[sym];
			var it = data[sym](), {next} = it;
			var f = Components.Constructor("@mozilla.org/file/local;1", "nsIFile", "initWithPath");
			it.next = () => {
				var res = next.call(it), obj = res.value;
				if (obj) {
					var {file} = obj;
					//if (typeof file == "function") obj.file = obj.file(f);
					if (typeof file == "string") {
						var ind = file.indexOf("\\"), has = ind > 0;
						var root = has ? file.slice(0, ind) : file;
						if (root.length > 2)
							file = Services.dirsvc.get(root, Ci.nsIFile).path
								+ (has ? file.slice(ind) : "");
						obj.file = f(file);
					}
				}
				return res;
			}
			return it;
		}
		delete this.image;
		return this.image = "chrome://browser/skin/save.svg";
	}
}))([{

	file: "WinD"
},{
	lab: "Автозагрузка",
	file: "Progs\\Startup"
},{
	file: "SysD\\drivers\\etc"
},
null, {
	lab: "Fox",
	file: "GreD",
	img: "chrome://branding/content/icon16.png"
},{
	file: "UChrm\\user_chrome_files\\custom_scripts",
	img: "data:image/svg+xml, <svg xmlns='http://www.w3.org/2000/svg' fill='%23fee082' stroke='%23b28501'><path d='M 7.7500004,3.5 H 13.5 a 2,2 45 0 1 2,2 v 7 a 2,2 135 0 1 -2,2 h -11 a 2,2 45 0 1 -2,-2 v -9 a 2,2 135 0 1 2,-2 H 5.0000004 A 1.3150997,1.3150997 20.81677 0 1 5.8737051,1.8321819 L 7.7500004,3.5 5.8737051,5.1678181 A 1.3150997,1.3150997 159.18323 0 1 5.0000004,5.5 H 0.5'/></svg>"
},{
	file: "D:\\Folder\\SubFolder"
}]);

(async url => {
	try {var exp = ChromeUtils.importESModule(url + "sys.mjs");}
	catch {exp = ChromeUtils.import(url + "jsm");}
	var bu = exp.BrowserUtils, {whereToOpenLink} = bu;

	var ts, ind;
	var args = ["TabOpen", e => Cu.now() - ts < 100
		&& e.target.ownerGlobal.gBrowser.moveTabTo(e.target, ind)
	, {once: true}];

	var rn = Ci.nsINavHistoryResultNode, notRn = o => !(o instanceof rn);

	bu.whereToOpenLink = function(e) {
		var beg, res = whereToOpenLink.apply(bu, arguments);
		if (!Event.isInstance(e) || "ws".includes(beg = res[0])) return res;
		try {
			var trg = e.composedTarget, win = trg.ownerGlobal;
			var node = trg._placesNode;
			if (notRn(node)) {
				node = trg.closest("tree")?.selectedNode;
				if (notRn(node)) return res;
				win = win.BrowserWindowTracker.getTopWindow();
			}
			//if ((e.button == 1 || e.ctrlKey) && res == "tab") return "current";

			var gb = win.gBrowser;
			if (beg == "c") {
				if (gb.selectedTab.isEmpty || node.uri.startsWith("javascript:"))
					return res;
				res = "tab";
			}
			if (res.startsWith("t")) {
				ts = Cu.now();
				ind = gb.selectedTab._tPos + 1;
				gb.tabContainer.addEventListener(...args);
			}
			return res;
		}
		catch(ex) {return res;}
	}
})("resource://gre/modules/BrowserUtils.");

(async repl => {
  var obj = `{\n  ${
    (await (await fetch("chrome://browser/content/places/controller.js")).text())
      .match(/async _removeRange\(.+?\n\ +}(?=,\n)/s)[0]
      .replace("// This is a common bookmark item.", repl)
  }\n}`
  var ps = await ChromeUtils.compileScript("data:,(" + encodeURIComponent(`${obj => {
    var patch = async ctor => {
      var proto = ctor.prototype, meth = proto?._removeRange;
      meth && Object.assign(proto, obj);
    }
    var key = "PlacesController";
    var desc = Object.getOwnPropertyDescriptor(window, key);
    if (!desc) return;

    var {get} = desc;
    if (get)
      desc.get = () => {
        var val = get();
        patch(val);
        return val;
      },
      Object.defineProperty(window, key, desc);
    else
      patch(desc.value);
  }})(${obj});`));

  var obs = doc => "PlacesController" in doc.ownerGlobal && ps.executeInGlobal(doc);
  var topic = "chrome-document-loaded";
  Services.obs.addObserver(obs, topic);
  Services.obs.addObserver(function quit(s, t) {
    Services.obs.removeObserver(quit, t);
    Services.obs.removeObserver(obs, topic);
  }, "quit-application-granted");
})(
    `$&
        if (!removedFolders.ignore) {
/*
          let info = await PlacesUtils.bookmarks.fetch(node.bookmarkGuid);
*/
          let args = [node.bookmarkGuid];
          let isBookmark = PlacesUtils.nodeIsBookmark(node);

          isBookmark && args.push(null, {includePath: true});
          let info = await PlacesUtils.bookmarks.fetch(...args);
          if (isBookmark) info.parentGuid = info.path[0].guid;
          if (
            info?.parentGuid == "${PlacesUtils.bookmarks.toolbarGuid}" &&
            !(removedFolders.ignore ??= Services.prompt.confirm(
              null, null, "Удалить закладку/папку?"
            ))
          ) {
            totalItems--;
            continue;
          }
        }`
);

// Исходная версия https://github.com/alice0775/userChrome.js/blob/master/undoBookmarksContextMenu.uc.js
// более свежая https://github.com/alice0775/userChrome.js/blob/master/91/undoBookmarksContextMenu.uc.js
// Версия _zt https://forum.mozilla-russia.org/viewtopic.php?pid=792868#p792868
// Версия ВВП https://forum.mozilla-russia.org/viewtopic.php?pid=798662#p798662
// Это вариант от Dumby https://forum.mozilla-russia.org/viewtopic.php?pid=798678#p798678
// иконка моя
(async sep => {
  if (!sep) return;

  var key = "hasRemoveTransaction";
  var g = Cu.import("resource://gre/modules/PlacesTransactions.jsm", {});
  if (!g[key]) {
    Services.scriptloader.loadSubScript(
      `data:,this.${key}=TransactionsHistory.proxifiedToRaw;`, g
    );
    var raws = g[key];
    g[key] = entry => {
      for(var tr of entry)
        if (raws.get(tr) instanceof PlacesTransactions.Remove)
          return true;
    }
  }
  var menuitem = document.createXULElement("menuitem");
  for(var args of Object.entries({
    closemenu: "single",
    class: "menuitem-iconic",
    id: "placesCmd_undoRemove",
    label: "Восстановить удалённое",
    oncommand: "PlacesTransactions.undo().catch(Cu.reportError);",
    image: "data:image/png;base64,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",
  }))
    menuitem.setAttribute(...args);

  var desc = Object.getOwnPropertyDescriptor(XULElement.prototype, "hidden");
  var {set} = desc;
  desc.set = () => {
    var entry = PlacesTransactions.topUndoEntry;
    var vis = entry && g[key](entry);
    vis && menuitem.removeAttribute("disabled");
    set.call(menuitem, !vis);
  }
  Object.defineProperty(menuitem, "hidden", desc);
  sep.before(menuitem);
})(document.getElementById("placesContext_deleteSeparator"));