(async query => {
	var width = 300;
	var timeout = 400;

	var tid, once = {once: true};
	var nh = tab => !tab.matches(":hover");

	await delayedStartupPromise;
	var slot = gBrowser.selectedTab.flattenedTreeParentNode;
	var lst = e => {
		var tab = e.target;
		if (
			tab.nodeName == "tab"
			//&& !tab.selected
			&& tab.linkedPanel
		)
			tid && clearTimeout(tid),
			tid = setTimeout(onTab, timeout, tab);
	}
	var args = ["mouseenter", lst, true], cb;
	if (addEventListener != window.addEventListener)
		cb = true,
		addEventListener(...args, slot);
	else
		slot.addEventListener(...args),
		addEventListener("unload", () => 
			slot.removeEventListener(...args)
		, once);

	var onTab = tab => {
		tid = 0;
		if (nh(tab)) return;
		var cwg = tab.linkedBrowser
			.browsingContext?.currentWindowGlobal;
		cwg && openPopup(tab, cwg);
	}
	var openPopup = (...args) => {
		var popup = (cb ? this : mainPopupSet)
			.appendChild(document.createXULElement("menupopup"));

		popup.setAttribute("ignorekeys", true);
		popup.setAttribute("rolluponmousewheel", true);
		popup.setAttribute("consumeoutsideclicks", "never");
		popup.shadowRoot.querySelector("style").append(`
			:host {
				padding: 0 !important;
				margin-top: 1px !important;
				-moz-appearance: none !important;
			}
			arrowscrollbox::part(scrollbutton-up),
			arrowscrollbox::part(scrollbutton-down) {
				display: none !important;
			}
		`);
		var hide = () => popup.hidePopup();

		var canvas = popup.appendChild(document.createElement("canvas"));
		canvas.width = width;
		var context = canvas.getContext("2d", {alpha: false});

		if (parseInt(Services.appinfo.platformVersion) >= 81) {
			var wp = "width", hp = "height";
			query += "Info";
		} else {
			var wp = 0, hp = 1;
			query += "Size";
		}
		(openPopup = async (tab, cwg) => {
			var res = await cwg.getActor("Thumbnails").sendQuery(query);
			if (nh(tab)) return;

			var w = res[wp];
			if (w < width) return;

			var h = res[hp], k = width / w;
			try {var bitmap = await cwg.drawSnapshot(
				new DOMRect(0, 0, w, h), k, "white"
			);} catch {}

			if (nh(tab) || !bitmap) return;

			canvas.height = k * h;
			context.drawImage(bitmap, 0, 0);
			bitmap.close();

			popup.openPopup(tab, "after_start");
			tab.addEventListener("mouseleave", hide, once);
		})(...args);
	}
})("Browser:Thumbnail:Content");

(async (sel, self) => ({

	icon: "circle",
	colors: [
		"#FF9800",
		"#03A9F4",
		"#FFC107",
		"#00BCD4",
		"#FFEB3B",
		"#009688",
		"#CDDC39",
		"#4CAF50",
		"#8BC34A",
		"#D32F2F",
		"#4949ff",
		"#C2185B",
		"#607D8B",
		"#7B1FA2",
		"#9E9E9E",
		"#673AB7",
		"#795548",
		"#3F51B5",
		"#FF5722",
		"#2196F3",
	],

	initColors() {
		var colorName = "ucf-gen";
		var css = "@-moz-document url(about:preferences#containers),"
			+ " url-prefix(chrome://browser/content/browser.x) {\n";
		this.colors.forEach((color, ind) => {
			var [ic, tc] = color.split(/\s*\|\s*/);
			css += `\t.identity-color-${colorName}${ind} {\n`
				+ `\t\t--identity-tab-color: ${tc || ic};\n`
				+ `\t\t--identity-icon-color: ${ic};\n\t}\n`
		});
		var url = "data:text/css;charset=utf-8," + encodeURIComponent(css + "}");
		var sss = Cc["@mozilla.org/content/style-sheet-service;1"]
			.getService(Ci.nsIStyleSheetService);
		sss.loadAndRegisterSheet(Services.io.newURI(url), sss.USER_SHEET);

		var len = this.colors.length;
		var pref = "ucf.openInGeneratedContainer.lastColor";
		var ind = Math.min(Services.prefs.getIntPref(pref, -1), len - 1);
		this.nextColor = () => {
			var next = ind + 1;
			Services.prefs.setIntPref(pref, ind = next == len ? 0 : next);
			return colorName + ind;
		}
	},
	quit: false,
	init(topic) {
		Services.obs.addObserver(self = this, topic);

		var lt = "browser-lastwindow-close-granted";
		var lw = () => this.quit = true;
		Services.obs.addObserver(lw, lt);

		Services.obs.addObserver(function quit(s, t) {
			self.quit = true;
			Services.obs.removeObserver(self, topic);
			Services.obs.removeObserver(lw, lt);
			Services.obs.removeObserver(quit, t);
		}, "quit-application-granted");
		this.initColors();
		this.newUsercontext = name => {
			var id = this.cis.create(
				name || `[ ${this.cis._lastUserContextId + 1} ]`, this.icon, this.nextColor()
			).userContextId;
			this.saveGens(this.gens.add(id));
			return id;
		}
		var cpref = "ucf.openInGeneratedContainer.containers";
		var arr = Services.prefs.getStringPref(cpref, "").split(",").map(Number).filter(Boolean);
		if (arr.length) {
			var ids = this.cis.getPublicIdentities().map(i => i.userContextId);
			arr = arr.filter(id => ids.includes(id));
		}
		this.gens = new Set(arr);
		(this.saveGens = () => Services.prefs.setStringPref(cpref, Array.from(this.gens).join(",")))();
	},
	observe(doc) {
		var list = doc.querySelectorAll(sel);
		if (!list.length) return;

		var menuitem = doc.createXULElement("menuitem");
		for(var args of Object.entries({
			selectiontype: "single",
			oncommand: "cmd(window)",
			nodetype: "folder|query",
			selection: "folder|query",
			label: "Открыть всё в контейнере",
			id: "placesContext_openContainer:tabs:newUsercontext"
		}))
			menuitem.setAttribute(...args);
		menuitem.cmd = this.cmd;
		menuitem.rnd = menuitem.constructor.prototype.render;
		menuitem.render = this.render;
		var [m1, m2] = menuitem.list = Array.from(list);
		(m2 || m1).after(menuitem);

		if (doc.documentElement.getAttribute("windowtype") != "navigator:browser") return;

		for(var btn of [
			doc.getElementById("tabs-newtab-button"),
			doc.getElementById("new-tab-button") ||
				doc.ownerGlobal.gNavToolbox.palette.querySelector("#new-tab-button")
		])
			if (btn) btn.checkForMiddleClick = this.click;

		var win = doc.ownerGlobal;
		this.redefDoSearch(win, win.customElements.get("searchbar").prototype);

		win.gBrowser.tabContainer.addEventListener("TabClose", this.tabClose);
		win.addEventListener("unload", this.winUnload, {once: true});
		this.quit = false;
	},
	winUnload(e) {
		var win = e.target.ownerGlobal;
		win.removeEventListener("TabClose", self.tabClose);
		if (self.quit) return;
		var gb = win.gBrowser;
		if (gb) for(var tab of gb.tabs) self.tabClose(null, tab);
	},
	closed: new Set(),
	cis: ChromeUtils.import("resource://gre/modules/ContextualIdentityService.jsm")
		.ContextualIdentityService,
	tabClose(e, tab = e.target) {
		var id = +tab.getAttribute("usercontextid");
		id && self.gens.has(id) && self.closed.add(id);
		self.closed.size == 1 && ChromeUtils.idleDispatch(self.maybeRemove);
	},
	maybeRemove() {
		var ids = Array.from(self.closed);
		self.closed.clear();
		for(var id of ids) self.maybeRemoveById(id);
	},
	maybeRemoveById(id) {
		for(var win of CustomizableUI.windows)
			if (win.document.querySelector(`tab.tabbrowser-tab[usercontextid="${id}"]`))
				return;
		this.saveGens(this.gens.delete(id));
		this.cis.remove(id);
	},
	redefDoSearch(win, proto) {
		var code = `(openTrustedLinkIn => [
			{${proto.doSearch}}, openTrustedLinkIn
		])(
			function otl(url, where, params) {
				if (where != "current") params.resolveOnNewTabCreated =
					br => gBrowser.moveTabTo(
						gBrowser.getTabForBrowser(br), Infinity
					),
					params.userContextId = otl.newUsercontext(
						document.getElementById("searchbar").value
					);
				openTrustedLinkIn(url, where, params);
			}
		);`;
		(this.redefDoSearch = (win, proto) => {
			var [obj, func] = win.eval(code);
			Object.assign(proto, obj);
			func.newUsercontext = this.newUsercontext;
		})(win, proto);
	},
	click(btn, e) {
		if (!(e.button != 2 || e.ctrlKey || e.shiftKey)) {
			var txt = e.view.readFromClipboard();
			if (txt) {
				var urls = txt.split("\n").map(self.map).filter(Boolean);
				if (urls.length) return e.preventDefault(),
					self.openFromClipboard(e.view, urls);
			}
		}
		e.view.checkForMiddleClick(btn, e);
	},
	eo: Object.create(null),
	map(str) {
		str = str.trim();
		try {
			var scheme = Services.io.extractScheme(str);
			var ph = Services.io.getProtocolHandler(scheme);
			if (ph.scheme == scheme)
				return Services.io.newURI(str) && {uri: str};
		} catch {}
	},
	openFromClipboard(win, urls) {
		if (win.OpenInTabsUtils.confirmOpenInTabs(urls.length, win))
			urls.load = true,
			this.open(win, this.eo, urls);
	},
	async render() {
		this.rnd();
		await new Promise(this.ownerGlobal.requestAnimationFrame);
		this.hidden || (this.hidden = this.list.every(self.every));
	},
	every: node => node.disabled || node.hidden,
	cmd(win) {
		var {_view, triggerNode} = this.parentNode;
		var node = triggerNode._placesView && triggerNode._placesView.result.root;
		self.open(win, node || _view.selectedNode || _view.result.root);
	},
	open(win, node, list) {
		var gbw = Cu.import("resource:///modules/PlacesUIUtils.jsm", {}).getBrowserWindow;
		var w = gbw(win);
		this.pu = w.PlacesUIUtils;
		this.fs = w.PlacesUtils.favicons;
		this.sysp = w.E10SUtils.SERIALIZED_SYSTEMPRINCIPAL;

		(this.open = (win, node, list) => {
			var {bookmarkGuid: guid, title} = node;
			if (guid && title) title = win.PlacesUtils.bookmarks.getLocalizedTitle({guid, title});
			this.openURLs(gbw(win), list || win.PlacesUtils.getURLsForContainerNode(node), title);
			guid && this.pu.doCommand(win, "placesCmd_delete");
		})(win, node, list);
	},
	async openURLs(win, urls, title) {
		var userContextId = this.newUsercontext(title);
		var mark = !win.PrivateBrowsingUtils.isWindowPrivate(win);
		var {load} = urls, gb = win.gBrowser, pos = gb.selectedTab._tPos;

		for(var {uri, title, isBookmark} of urls) try {
			if (mark) isBookmark
				? this.pu.markPageAsFollowedBookmark(uri)
				: this.pu.markPageAsTyped(uri);

			if (load) {
				gb.addTrustedTab(uri, {index: ++pos, userContextId});
				continue;
			}
			var state = {userContextId, entries: [{
				url: uri,
				title: title || uri,
				triggeringPrincipal_base64: this.sysp
			}]};
			var [,, data, mime] = await new Promise(
				resolve => this.fs.getFaviconDataForPage(
					Services.io.newURI(uri), (...args) => resolve(args), 16
				)
			);
			if (data.length) state.image = `data:${
				mime || "image/x-icon"
			};base64,${
				btoa(String.fromCharCode(...data))
			}`;
			var tab = gb.addTrustedTab(null, {index: ++pos, userContextId});
			win.SessionStore.setTabState(tab, state);
		} catch {};
	}
}).init("chrome-document-loaded"))(
	"#placesContext_openBookmarkContainer\\:tabs,#placesContext_openContainer\\:tabs"
);

var EXPORTED_SYMBOLS = ["MouseImgSaverChild", "MouseImgSaverParent"]; // открыть картинку, перетащив вправо; сохранить колёсиком

var u = {get it() {
	delete this.it;
	return this.it = Cc["@mozilla.org/image/tools;1"].getService(Ci.imgITools);
}};
for(let name of ["E10SUtils", "PrivateBrowsingUtils"])
	ChromeUtils.defineModuleGetter(u, name, `resource://gre/modules/${name}.jsm`);

class MouseImgSaverChild extends JSWindowActorChild {
	handleEvent(e) { // клики мышью
		if (e.button > 1) return; // только ЛКМ, СКМ
		var trg = e.explicitOriginalTarget;
		trg.nodeType == Node.ELEMENT_NODE
			&& trg instanceof Ci.nsIImageLoadingContent
			&& this[e.type](trg, e);
	}
	handleDragEvent(e) {
		this[e.type](e);
	}
	dragstart(trg, e) {
		this.trg = trg;
		this.x = e.screenX; this.y = e.screenY;
		this.drag("add");
		this.handleEvent = this.handleDragEvent;
		this.checkTextLinkyTool(trg.ownerDocument);
	}
	events = ["dragover", "drop", "dragend"];
	drag(meth = (delete this.handleEvent, delete this.trg, "remove")) {
		meth += "EventListener";
		var win = this.contentWindow;
		for(var type of this.events) win[meth](type, this, true);
	}
	drop() {
		this.drag();
	}
	dragover(e) {
		var {x, y} = this,
			cx = e.screenX, cy = e.screenY,
			dx = cx - x,
			ax = Math.abs(dx), ay = Math.abs(cy - y);

		if (ax < 10 && ay < 10) return;
		if (dx < 0 || ax < ay) return this.drag();
		this.x = cx; this.y = cy;
	}
	dragend(e) { // перетаскивание рисунка
		var dt = e.dataTransfer, {trg} = this;
		this.drag();
		// dt.mozUserCancelled || this.send(trg, e.screenX);
		dt.mozUserCancelled
			|| this.sendAsyncMessage("dragend", (trg.currentRequestFinalURI || uri).spec);
	}
	auxclick(trg) { // клик СКМ
		trg.matches(":any-link :scope") || this.send(trg);
	}
	dblclick(trg) { // ЛКМ
		trg.matches(":any-link :scope")
			|| this.sendAsyncMessage("dblclick", (trg.currentRequestFinalURI || uri).spec);
	}
	send(trg, sx) {
		var uri = trg.currentURI;
		if (!uri) return;

		var doc = trg.ownerDocument;
		var cookieJarSettings = u.E10SUtils
			.serializeCookieJarSettings(doc.cookieJarSettings);

		var referrerInfo = Cc["@mozilla.org/referrer-info;1"]
			.createInstance(Ci.nsIReferrerInfo);
		referrerInfo.initWithElement(trg);
		referrerInfo = u.E10SUtils.serializeReferrerInfo(referrerInfo);

		var contentType = null, contentDisposition = null;
		try {
			var props = u.it.getImgCacheForDocument(doc).findEntryProperties(uri, doc);
			var cs = Ci.nsISupportsCString;
			try {contentType = props.get("type", cs).data;} catch {}
			try {contentDisposition = props.get("content-disposition", cs).data;} catch {}
		} catch {}

		this.sendAsyncMessage("", {
			title: trg.closest("[title]")?.title,
			url: (trg.currentRequestFinalURI || uri).spec,
			contentType, referrerInfo, cookieJarSettings, contentDisposition, sx,
			isPrivate: u.PrivateBrowsingUtils.isContentWindowPrivate(trg.ownerGlobal)
		});
	}
	checkTextLinkyTool(doc) {
		if (doc.title || !doc.documentURI.startsWith("moz-extension:")) return;
		var lab = doc.querySelector("body > label#lblFrom:first-child")?.textContent;
		if (lab) doc.title = lab.slice(0, lab.lastIndexOf("("));
	}
}
if (!ChromeUtils.domProcessChild.childID) {
	ChromeUtils.registerWindowActor("MouseImgSaver", {
		allFrames: true,
		parent: {moduleURI: __URI__},
		messageManagerGroups: ["browsers"],
		child: {moduleURI: __URI__, events: {auxclick: {capture: true}, dblclick: {capture: true}, dragstart: {capture: true}}}
	});
	var wref, titles = Object.create(null);
	var data = Object.assign(Object.create(null), {
		"browser.download.dir": {type: "String", get set() {

			var win = wref.get(), {prefs, dirsvc} = win.Services
			var {DownloadPaths, FileUtils} = win;
			var map = val => DownloadPaths.sanitize(val);

			win.Downloads.getList(win.Downloads.ALL).then(list => list.addView({
				onDownloadChanged(download) {
					if (!download.stopped) return;
					var {url} = download.source, title = titles[url];
					if (!title) return;
					delete titles[url];
					if (!download.succeeded) return;

					var file = FileUtils.File(download.target.path), {leafName} = file;
					var ext = leafName.slice(leafName.lastIndexOf("."));
					var newName = map(title) + ext, {parent} = file;
					var newFile = parent.clone();
					newFile.append(newName);
					try {
						newFile.createUnique(file.NORMAL_FILE_TYPE, file.permissions);
						file.renameTo(parent, newFile.leafName);
						download.target.path = newFile.path;
						download.refresh();
					} catch {}
				}
			}));
			Object.defineProperty(this, "set", {get() {
				try {var dir = prefs.getComplexValue("browser.download.dir", Ci.nsIFile);} catch {var dir = dirsvc.get("DfltDwnld", Ci.nsIFile);}

				var arr = prefs.getStringPref("ucf_save.dirs", "_Web||_Images|0").split('|').slice(2, 4); // [Загрузки]/папки ucf_save/файл
				arr[1] = (arr[1]) ? wref.get().gBrowser.selectedTab.label.slice(0, 64).replace(/ \| Форум Mozilla Россия$| — Mozilla Firefox|[\\\/?*\"'`]+/g,'').replace(/\s+/g,' ').replace(/[|<>]+/g,'_').replace(/:/g,'։').trim() : ""; // имя вкладки
				arr.map(map).forEach(dir.append); // ucf_save.dirs: путь для html|имя или домен|папка графики|имя вкладки
				dir.exists() && dir.isDirectory() || dir.create(dir.DIRECTORY_TYPE, 0o777); // создать папку, если не существует…
				return dir.path;
			}});
			return this.set;
		}},
		"browser.download.folderList": {type: "Int", set: 2},
		"browser.download.useDownloadDir": {type: "Bool", set: true}
	});
	var MouseImgSaverParent = class extends JSWindowActorParent {
		receiveMessage(msg) {
			var win = msg.target.browsingContext.topChromeWindow, {name} = msg;
			if (name) return this[name](win, msg.data);

			var {url, contentType, contentDisposition, sx, title,
				isPrivate, referrerInfo, cookieJarSettings} = msg.data;
			if (sx && sx > win.mozInnerScreenX + win.innerWidth) return;

			if (title) titles[url] = title;

			wref = Cu.getWeakReference(win);
			var p = win.Services.prefs;

			for(var pref in data) {
				var obj = data[pref], meth = `et${obj.type}Pref`;
				obj.val = p.prefHasUserValue(pref) ? p["g" + meth](pref) : null;
				p["s" + meth](pref, obj.set);
			}
			try {win.internalSave(
				url,
				null, // document
				null, // file name
				contentDisposition,
				contentType,
				false, // do not bypass the cache
				null, // filepicker title key
				null, // chosen data
				u.E10SUtils.deserializeReferrerInfo(referrerInfo),
				u.E10SUtils.deserializeCookieJarSettings(cookieJarSettings),
				win.document, // initiating doc
				true, // skip prompt for where to save
				null, // cache key
				isPrivate,
				win.document.nodePrincipal
			);}
			finally {
				for(var pref in data) data[pref].val === null
					? p.clearUserPref(pref)
					: p[`set${data[pref].type}Pref`](pref, data[pref].val);
			}
		}
		dblclick(win, imgURL) {
			var gb = win.gBrowser, index = gb.selectedTab._tPos + 1;
			gb.selectedTab = gb.addTrustedTab('https://yandex.ru/images/search?rpt=imageview&url=' + imgURL, {index});
		}
		dragend(win, imgURL) {
			var gb = win.gBrowser, index = gb.selectedTab._tPos + 1;
			gb.selectedTab = gb.addTrustedTab(imgURL, {index});
		}
	}
}

(async (sel, self) => ({

	icon: "circle",
	colors: [
		"#FF9800",
		"#03A9F4",
		"#FFC107",
		"#00BCD4",
		"#FFEB3B",
		"#009688",
		"#CDDC39",
		"#4CAF50",
		"#8BC34A",
		"#D32F2F",
		"#4949ff",
		"#C2185B",
		"#607D8B",
		"#7B1FA2",
		"#9E9E9E",
		"#673AB7",
		"#795548",
		"#3F51B5",
		"#FF5722",
		"#2196F3",
	],

	initColors() {
		var colorName = "ucf-gen";
		var css = "@-moz-document url(about:preferences#containers),"
			+ " url-prefix(chrome://browser/content/browser.x) {\n";
		this.colors.forEach((color, ind) => {
			var [ic, tc] = color.split(/\s*\|\s*/);
			css += `\t.identity-color-${colorName}${ind} {\n`
				+ `\t\t--identity-tab-color: ${tc || ic};\n`
				+ `\t\t--identity-icon-color: ${ic};\n\t}\n`
		});
		var url = "data:text/css;charset=utf-8," + encodeURIComponent(css + "}");
		var sss = Cc["@mozilla.org/content/style-sheet-service;1"]
			.getService(Ci.nsIStyleSheetService);
		sss.loadAndRegisterSheet(Services.io.newURI(url), sss.USER_SHEET);

		var len = this.colors.length;
		var pref = "ucf.openInGeneratedContainer.lastColor";
		var ind = Math.min(Services.prefs.getIntPref(pref, -1), len - 1);
		this.nextColor = () => {
			var next = ind + 1;
			Services.prefs.setIntPref(pref, ind = next == len ? 0 : next);
			return colorName + ind;
		}
	},
	quit: false,
	init(topic) {
		Services.obs.addObserver(self = this, topic);

		var lt = "browser-lastwindow-close-granted";
		var lw = () => this.quit = true;
		Services.obs.addObserver(lw, lt);

		Services.obs.addObserver(function quit(s, t) {
			self.quit = true;
			Services.obs.removeObserver(self, topic);
			Services.obs.removeObserver(lw, lt);
			Services.obs.removeObserver(quit, t);
		}, "quit-application-granted");
		this.initColors();
		this.newUsercontext = name => {
			var id = this.cis.create(
				name || `[ ${this.cis._lastUserContextId + 1} ]`, this.icon, this.nextColor()
			).userContextId;
			this.saveGens(this.gens.add(id));
			return id;
		}
		var cpref = "ucf.openInGeneratedContainer.containers";
		var arr = Services.prefs.getStringPref(cpref, "").split(",").map(Number).filter(Boolean);
		if (arr.length) {
			var ids = this.cis.getPublicIdentities().map(i => i.userContextId);
			arr = arr.filter(id => ids.includes(id));
		}
		this.gens = new Set(arr);
		(this.saveGens = () => Services.prefs.setStringPref(cpref, Array.from(this.gens).join(",")))();
	},
	observe(doc) {
		var list = doc.querySelectorAll(sel);
		if (!list.length) return;

		var menuitem = doc.createXULElement("menuitem");
		for(var args of Object.entries({
			selectiontype: "single",
			oncommand: "cmd(window)",
			nodetype: "folder|query",
			selection: "folder|query",
			label: "Открыть всё в контейнере",
			id: "placesContext_openContainer:tabs:newUsercontext"
		}))
			menuitem.setAttribute(...args);
		menuitem.cmd = this.cmd;
		menuitem.rnd = menuitem.constructor.prototype.render;
		menuitem.render = this.render;
		var [m1, m2] = menuitem.list = Array.from(list);
		(m2 || m1).after(menuitem);

		if (doc.documentElement.getAttribute("windowtype") != "navigator:browser") return;

		for(var btn of [
			doc.getElementById("tabs-newtab-button"),
			doc.getElementById("new-tab-button") ||
				doc.ownerGlobal.gNavToolbox.palette.querySelector("#new-tab-button")
		])
			if (btn) btn.checkForMiddleClick = this.click;

		var win = doc.ownerGlobal;
		this.redefDoSearch(win, win.customElements.get("searchbar").prototype);

		win.gBrowser.tabContainer.addEventListener("TabClose", this.tabClose);
		win.addEventListener("unload", this.winUnload, {once: true});
		this.quit = false;

		var tuc = "gBrowser.selectedTab.userContextId";
		win.BrowserOpenTab = win.eval(`(${win.BrowserOpenTab})`.replace(
			"resolve,", `$&\n          userContextId: ${tuc},`
		));
		var bdw = win.browserDOMWindow.wrappedJSObject;
		win.Object.assign(bdw, win.eval(
			`({${bdw.getContentWindowOrOpenURI}})`
				.replace("userContextId,", `isExternal ? ${tuc} : $&`)
				.replace(
					/null,\s+null,\s+null,\s+aTriggeringPrincipal/,
					`isExternal ? ${tuc} : $&`
				)
		));
	},
	winUnload(e) {
		var win = e.target.ownerGlobal;
		win.removeEventListener("TabClose", self.tabClose);
		if (self.quit) return;
		var gb = win.gBrowser;
		if (gb) for(var tab of gb.tabs) self.tabClose(null, tab);
	},
	closed: new Set(),
	cis: ChromeUtils.import("resource://gre/modules/ContextualIdentityService.jsm")
		.ContextualIdentityService,
	tabClose(e, tab = e.target) {
		var id = +tab.getAttribute("usercontextid");
		id && self.gens.has(id) && self.closed.add(id);
		self.closed.size == 1 && ChromeUtils.idleDispatch(self.maybeRemove);
	},
	maybeRemove() {
		var ids = Array.from(self.closed);
		self.closed.clear();
		for(var id of ids) self.maybeRemoveById(id);
	},
	maybeRemoveById(id) {
		for(var win of CustomizableUI.windows)
			if (win.document.querySelector(`tab.tabbrowser-tab[usercontextid="${id}"]`))
				return;
		this.saveGens(this.gens.delete(id));
		this.cis.remove(id);
	},
	redefDoSearch(win, proto) {
		var code = `(openTrustedLinkIn => [
			{${proto.doSearch}}, openTrustedLinkIn
		])(
			function otl(url, where, params) {
				if (where != "current")
					params.resolveOnNewTabCreated = br => {
						var tab = gBrowser.getTabForBrowser(br);
						gBrowser.moveTabTo(tab, Infinity);
						gBrowser.addTrustedTab("about:blank", {
							index: tab._tPos,
							userContextId: tab.userContextId
						});
					},
					params.userContextId = otl.newUsercontext(
						document.getElementById("searchbar").value
					);
				openTrustedLinkIn(url, where, params);
			}
		);`;
		(this.redefDoSearch = (win, proto) => {
			var [obj, func] = win.eval(code);
			Object.assign(proto, obj);
			func.newUsercontext = this.newUsercontext;
		})(win, proto);
	},
	click(btn, e) {
		if (!(e.button != 2 || e.ctrlKey || e.shiftKey)) {
			var txt = e.view.readFromClipboard();
			if (txt) {
				var urls = txt.split("\n").map(self.map).filter(Boolean);
				if (urls.length) return e.preventDefault(),
					self.openFromClipboard(e.view, urls);
			}
		}
		e.view.checkForMiddleClick(btn, e);
	},
	eo: Object.create(null),
	map(str) {
		str = str.trim();
		try {
			var scheme = Services.io.extractScheme(str);
			var ph = Services.io.getProtocolHandler(scheme);
			if (ph.scheme == scheme)
				return Services.io.newURI(str) && {uri: str};
		} catch {}
	},
	openFromClipboard(win, urls) {
		if (win.OpenInTabsUtils.confirmOpenInTabs(urls.length, win))
			urls.load = true,
			this.open(win, this.eo, urls);
	},
	async render() {
		this.rnd();
		await new Promise(this.ownerGlobal.requestAnimationFrame);
		this.hidden || (this.hidden = this.list.every(self.every));
	},
	every: node => node.disabled || node.hidden,
	cmd(win) {
		var {_view, triggerNode} = this.parentNode;
		var node = triggerNode._placesView && triggerNode._placesView.result.root;
		self.open(win, node || _view.selectedNode || _view.result.root);
	},
	open(win, node, list) {
		var gbw = Cu.import("resource:///modules/PlacesUIUtils.jsm", {}).getBrowserWindow;
		var w = gbw(win);
		this.pu = w.PlacesUIUtils;
		this.fs = w.PlacesUtils.favicons;
		this.sysp = w.E10SUtils.SERIALIZED_SYSTEMPRINCIPAL;

		(this.open = (win, node, list) => {
			var {bookmarkGuid: guid, title} = node;
			if (guid && title) title = win.PlacesUtils.bookmarks.getLocalizedTitle({guid, title});
			this.openURLs(gbw(win), list || win.PlacesUtils.getURLsForContainerNode(node), title);
			guid && this.pu.doCommand(win, "placesCmd_delete");
		})(win, node, list);
	},
	async openURLs(win, urls, title) {
		var userContextId = this.newUsercontext(title);
		var mark = !win.PrivateBrowsingUtils.isWindowPrivate(win);
		var {load} = urls, gb = win.gBrowser, pos = gb.selectedTab._tPos;

		for(var {uri, title, isBookmark} of urls) try {
			if (mark) isBookmark
				? this.pu.markPageAsFollowedBookmark(uri)
				: this.pu.markPageAsTyped(uri);

			if (load) {
				gb.addTrustedTab(uri, {index: ++pos, userContextId});
				continue;
			}
			var state = {userContextId, entries: [{
				url: uri,
				title: title || uri,
				triggeringPrincipal_base64: this.sysp
			}]};
			var [,, data, mime] = await new Promise(
				resolve => this.fs.getFaviconDataForPage(
					Services.io.newURI(uri), (...args) => resolve(args), 16
				)
			);
			if (data.length) state.image = `data:${
				mime || "image/x-icon"
			};base64,${
				btoa(String.fromCharCode(...data))
			}`;
			var tab = gb.addTrustedTab(null, {index: ++pos, userContextId});
			win.SessionStore.setTabState(tab, state);
		} catch {};
	}
}).init("chrome-document-loaded"))(
	"#placesContext_openBookmarkContainer\\:tabs,#placesContext_openContainer\\:tabs"
);