if (this.type != "menu") {
    this.type = "menu";
    if (!this.hasAttribute("is")) return;
}
(popup => {
    var columns = [
        "¤ ¦ § © « » ¬ ® ° ± µ ¶ — ‘ ’ “ ” • ‰ ‹ › ™",
        "… ≈ ≠ × ✓ ✗ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞",
        "\uD83E\uDD8A \uD83D\uDE0E ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞"
    ];
    var css = //0&&
    `
        #${_id} menuitem > .menu-text {
            font-size: 22px;
            font-family: Consolas, Rockwell, Verdana;
            text-align: center;
            -moz-appearance: none;
            margin: 0;
            padding: 0 14px;
        }
        #${_id} menuitem > :not(.menu-text) {
            display: none;
        }
        #${_id} > menupopup > arrowscrollbox {
            background-color: menu;
        }
    `.replace(/;/g, " !important;");

    var inserter = {
        get docShell() {
            delete this.docShell;
            return this.docShell = "docShell" in document
                && document.docShell instanceof Ci.nsIDocShell
                ? document.docShell : window.docShell;
        },
        get insertText() {
            delete this.insertText;
            return this.insertText = text => {
                if (!this.docShell.isCommandEnabled("cmd_insertText")) return;
                var params = "createCommandParams" in Components.utils
                    ? Cu.createCommandParams()
                    : Components.classes["@mozilla.org/embedcomp/command-params;1"]
                        .createInstance(Components.interfaces.nsICommandParams);
                params.setStringValue("state_data", text);
                this.docShell.doCommandWithParams("cmd_insertText", params);
            }
        },
        insert(text) {
            var br = document.activeElement;
            !br || br.localName != "browser" || !br.isRemoteBrowser
            ? this.insertText(text) : br.messageManager.loadFrameScript(
                `data:,(${this.insertText})${encodeURIComponent(text.toSource())}`
            , false, true);
        }
    };
    this.onmousedown = e => {
        if (e.button) return;
        popup.addEventListener("popupshowing", e => {
            var menugroup = popup.firstChild;
            var parent = "boxObject" in menugroup
                ? menugroup.boxObject.parentBox
                : menugroup.flattenedTreeParentNode;
            parent.setAttribute("orient", "horizontal");
            if (parent.localName == "scrollbox")
                parent.style.setProperty("-moz-box-orient", "horizontal", "important");
        }, {once: true});

        popup.setAttribute("context", "");
        popup.setAttribute("oncommand", "inserter.insert(event.target.label);");
        popup.onauxclick = e => {
            var sym = e.target.label;
            sym && inserter.insert(sym);
        }
        popup.inserter = inserter;
        var df = document.createDocumentFragment();
        for(var symbols of columns) {
            var menugroup = popup.appendChild(document.createElementNS(xulns, "menugroup"));
            menugroup.setAttribute("orient", "vertical");
            for(var sym of symbols.split(" ")) menugroup.appendChild(
                document.createElementNS(xulns, "menuitem")
            ).setAttribute("label", sym);
        }
        popup.append(df);
        this.onmousedown = null;
        if (!css) return;
        var dwu = "windowUtils" in window && windowUtils instanceof Ci.nsIDOMWindowUtils
            ? windowUtils : window.QueryInterface(Ci.nsIInterfaceRequestor)
                .getInterface(Ci.nsIDOMWindowUtils);
        var type = dwu.AGENT_SHEET;
        var url = "data:text/css," + encodeURIComponent(css);
        dwu.loadSheetUsingURIString(url, type);
        addDestructor(() => dwu.removeSheetUsingURIString(url, type));
    }
    this.prepend(popup);
})(document.createElementNS(xulns, "menupopup"));

(this.type != "menu" && (this.type = "menu") && !this.hasAttribute("is")) || (popup => {
    var columns = [
        "¤ ¦ § © « » ¬ ® ° ± µ ¶ — ‘ ’ “ ” • ‰ ‹ › ™",
        "… ≈ ≠ × ✓ ✗ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞",
        "\uD83E\uDD8A \uD83D\uDE0E ⊞ ⊞ ⊞ ⊞ ⊞ ⊞ ⊞"
    ];
    var css = //0&&
    `
        #${_id} menuitem > .menu-text {
            font-size: 22px;
            font-family: Consolas, Rockwell, Verdana;
            text-align: center;
            -moz-appearance: none;
            margin: 0;
            padding: 0 14px;
        }
        #${_id} menuitem > :not(.menu-text) {
            display: none;
        }
        #${_id} menugroup,
        #${_id} > menupopup > arrowscrollbox {
            background-color: menu;
        }
    `.replace(/;/g, " !important;");

    var inserter = {
        get docShell() {
            delete this.docShell;
            return this.docShell = "docShell" in document
                && document.docShell instanceof Ci.nsIDocShell
                ? document.docShell : window.docShell;
        },
        get insertText() {
            delete this.insertText;
            return this.insertText = text => {
                if (!this.docShell.isCommandEnabled("cmd_insertText")) return;
                var params = "createCommandParams" in Components.utils
                    ? Cu.createCommandParams()
                    : Components.classes["@mozilla.org/embedcomp/command-params;1"]
                        .createInstance(Components.interfaces.nsICommandParams);
                params.setStringValue("state_data", text);
                this.docShell.doCommandWithParams("cmd_insertText", params);
            }
        },
        insert(text) {
            var br = document.activeElement;
            !br || br.localName != "browser" || !br.isRemoteBrowser
            ? this.insertText(text) : br.messageManager.loadFrameScript(
                `data:,(${this.insertText})${encodeURIComponent(text.toSource())}`
            , false, true);
        }
    };
    addEventListener("popupshowing", function ps() {
        removeEventListener("popupshowing", ps, true, popup);
        if (css) {
            var dwu = "windowUtils" in window && windowUtils instanceof Ci.nsIDOMWindowUtils
                ? windowUtils : window.QueryInterface(Ci.nsIInterfaceRequestor)
                    .getInterface(Ci.nsIDOMWindowUtils);
            var type = dwu.AGENT_SHEET;
            var url = "data:text/css," + encodeURIComponent(css);
            dwu.loadSheetUsingURIString(url, type);
            addDestructor(() => dwu.removeSheetUsingURIString(url, type));
        }
        var df = document.createDocumentFragment();
        for(var symbols of columns) {
            var menugroup = popup.appendChild(document.createElementNS(xulns, "menugroup"));
            menugroup.setAttribute("orient", "vertical");
            for(var sym of symbols.split(" ")) menugroup.appendChild(
                document.createElementNS(xulns, "menuitem")
            ).setAttribute("label", sym);
        }
        popup.append(df);
        var parent = "boxObject" in menugroup
            ? menugroup.boxObject.parentBox
            : menugroup.flattenedTreeParentNode;
        if (parent.localName == "slot") parent = parent.parentNode;
        parent.setAttribute("orient", "horizontal");
        if (parent.localName == "scrollbox")
            parent.style.setProperty("-moz-box-orient", "horizontal", "important");
        popup.setAttribute("context", "");
        popup.inserter = inserter;
        popup.setAttribute("oncommand", "inserter.insert(event.target.label);");
        popup.onauxclick = e => {
            var sym = e.target.label;
            sym && inserter.insert(sym);
        }
    }, true, popup);
    this.prepend(popup);
})(document.createElementNS(xulns, "menupopup"));

addEventListener("mousedown", {
    handleEvent(e) {
        this[e.type](e);
    },
    mousedown(e) {
        if (e.button || e.ctrlKey || e.shiftKey || e.altKey) return;
        var {spec} = gBrowser.currentURI;
        if (spec != "about:newtab" && spec != "about:home") return;
        var br = gBrowser.selectedBrowser;
        if (!br.matches(":hover")) return;

        this.br = br;
        this.loadURI = br.loadURI;
        br.loadURI = this.tab;
        window.addEventListener("mousemove", this, {once: true});
        window.addEventListener("keydown", this, {once: true});
    },
    mousemove() {
        if (!this.br) return;
        window.removeEventListener("mousemove", this);
        window.removeEventListener("keydown", this);
        this.br.loadURI = this.loadURI;
        this.loadURI = this.br = null;
    },
    keydown() {
        this.mousemove();
    },
    get tab() {
        delete this.tab;
        return this.tab = (url, params) => {
            var {userContextId} = this.br.contentPrincipal;
            this.mousemove();
            openUILinkIn(url, "tab", Object.assign(params, {userContextId}));
        }
    }
}, true, gBrowser.tabpanels || 1);

//addEventListener("mousedown", {
location.href.endsWith("/browser.xhtml") && gBrowser.tabpanels.addEventListener("mousedown", {

    // Посерёдка здесь

//}, true, gBrowser.tabpanels || 1);
}, true);

// ==UserScript==
// @name          Hover Links (v2)
// @namespace     http://userscripts-mirror.org/scripts/show/30002
// @description   A tooltip pops up when hovering over links.
// @include       *
// ==/UserScript==

const popTTDelay = 300;  //amount of time(in ms) after mouseover before popup (0 for immediatly)
var bg_color = "#ffffe0";
var border_color = "#ffd700";
var font_color = "#4682b4";
var font_face = "verdana";
var font_size = "10px"; // sorry, change slyles manually in function create_window   :-)
var add_favicon = false; 
const offSBRRight = 24;   //horizontal constant. if the popup makes horizontal scrollbars appear, increase this constant until it doesn't (default:18)
const offSBRTop = 24;     //vertical constant. if the popup makes vertical scrollbars appear, increase this constant until it doesn't (default:18)
var ttH, ttW; 

(function() {
    function locate(event)
    {   
        var ttWin = find_window();
        if (ttWin) {
        var tempLeft=(event.clientX + window.pageXOffset)+9;
        var tempTop=(event.clientY + window.pageYOffset)+10;

        if( (tempLeft+ttW) > (window.innerWidth+window.pageXOffset-offSBRRight) ) { //if its too far right
        tempLeft= (window.innerWidth+window.pageXOffset-offSBRRight-ttW-10);
        }

        if( (tempTop+ttH) > (window.innerHeight+window.pageYOffset-offSBRTop) ) { //if its too far down
        tempTop-=(ttH+offSBRTop);
        }

        if(tempLeft < window.pageXOffset) { //if it is too far left, i.e. it is a super-wide box
            tempLeft=window.pageXOffset+1; //set it all the way to the left
        }
        ttWin.style.top = tempTop + "px";
        ttWin.style.left = tempLeft + "px";
        }
    }

    function find_window()
    {    return document.getElementById("link_tt");
    }

    function create_window(id, ttTitle)
    {  
        var tt_err ='';
        var tt_div = document.createElement("div");
        tt_div.setAttribute("id", "link_tt");
        tt_div.setAttribute("style", "text-align: left; background:" + bg_color + ";border:1px solid " + border_color + ";padding:2px;color:" + font_color + ";font-family:" + font_face + ";font-size:" + font_size + ";position:absolute;z-index:1000000;"+
                                'padding-left: 8px; padding-right: 8px; padding-top: 3px; padding-bottom: 3px; ' +
                                'max-width: 95% !important; line-height: 1.2 !important; width: auto !important;' +
                                '-moz-border-radius: 0.7em !important;' );

        try {var decodedUrl=decodeURIComponent(id.href); }
        catch (err) { tt_err += '<br><font style="font-size: 8px; color: grey;">'+'bad url )'+'</font>';
                        decodedUrl=id.href;} // ?? :)

        var ttUrlHost=decodedUrl.split('/'); ttUrlHost=ttUrlHost[2];
        var favIco = '';
        if (ttUrlHost) {favIco="<img style='display: none;' onLoad=this.style.display=''; src=http://"+ttUrlHost+"/favicon.ico>  ";} 
        else {ttUrlHost='';}
        var dUrlLeng=decodedUrl.length;
        var urlPage =decodedUrl.slice(decodedUrl.indexOf(ttUrlHost)+ttUrlHost.length,decodedUrl.length);
        if (urlPage=='/') {urlPage='';} else {urlPage='<br>'+urlPage;}

        if (ttTitle) {ttTitle='<font style="font-size: 13px; color: #8b0000;">' + ttTitle+'</font><br>';} 
         else {ttTitle='';}

        tt_div.innerHTML = ttTitle+favIco + 
        '<font style="font-size: 12px">' + ttUrlHost+'</font>' + urlPage+tt_err;

        document.body.appendChild(tt_div);
        ttH=tt_div.offsetHeight;
        ttW=tt_div.offsetWidth;
    }

    function show_windowTT()
    {if (find_window()) {find_window().style.display = '';}
    }

    function kill_window()
    {        if (find_window()) find_window().parentNode.removeChild(find_window());
    }

    function create_event(id)
    {    if (id.title)
        { var ttTitle = id.title;
            id.addEventListener("mouseover", function() { create_window(id, ttTitle); }, false);
            id.title='';
        }
        else {id.addEventListener("mouseover", function() { create_window(id); }, false);}

        id.addEventListener("mouseout", function() { kill_window(); }, false);
        id.addEventListener("mousemove", function(event) { locate(event); }, true);

        if (add_favicon) // add favicon on page before link
         { var idH = id.href; 
            if(idH&&(!idH.match(document.domain+'|@|javascript:|mailto:'))) {
                var C=idH.split("/");
                id.style.background="url("+C[0]+"//"+C[2]+"/favicon.ico) center left no-repeat";
                id.style.paddingLeft="18px";
    
            }
          }

    }

unsafeWindow.show_windowTT = show_windowTT;
var link = document.getElementsByTagName("a");
for (i = 0; i < link.length; i++)
 {     create_event(link[i]);
 }
})()

/*Initialization Code*/
this.type != "menu" ? this.type = "menu" : (popup => {
    var inserter = {
        get docShell() {
            delete this.docShell;
            return this.docShell = "docShell" in document
                && document.docShell instanceof Ci.nsIDocShell
                ? document.docShell : window.docShell;
        },
        get insertText() {
            delete this.insertText;
            return this.insertText = text => {
                if (!this.docShell.isCommandEnabled("cmd_insertText")) return;
                var params = "createCommandParams" in Components.utils
                    ? Cu.createCommandParams()
                    : Components.classes["@mozilla.org/embedcomp/command-params;1"]
                        .createInstance(Components.interfaces.nsICommandParams);
                params.setStringValue("state_data", text);
                this.docShell.doCommandWithParams("cmd_insertText", params);
            }
        },
        insert(text) {
            var br = document.activeElement;
            !br || br.localName != "browser" || !br.isRemoteBrowser
            ? this.insertText(text) : br.messageManager.loadFrameScript(
                `data:,(${this.insertText})${encodeURIComponent(text.toSource())}`
            , false, true);
        }
    };
    this.onmousedown = e => {
        if (e.button) return;
        this.onmousedown = null;

        var data, save = () => {
            var link = custombuttons.makeButtonLink("update", _id);
            var params = custombuttons.cbService.getButtonParameters(link).wrappedJSObject;
            params.help = JSON.stringify(data, null, "\t");
            custombuttons.cbService.installButton(params.wrappedJSObject = params);
        }
        popup.setAttribute("context", "");
        popup.setAttribute("onpopupshowing", "firstChild.disabled = !gClipboard.read();");

        popup.add = () => save(data.push(gClipboard.read()));

        var menuitem = popup.appendChild(document.createXULElement("menuitem"));
        menuitem.setAttribute("label", "Добавить из буфера");
        menuitem.setAttribute("oncommand", "parentNode.add();");

        if (!(data = JSON.parse(this.Help || "[]")).length) return;

        popup.insert = ind => inserter.insert(data[ind]);
        popup.delete = ind => save(data.splice(ind, 1));

        var df = document.createDocumentFragment();
        df.append(document.createXULElement("menuseparator"));

        var menugroup = df.appendChild(document.createXULElement("menugroup"));
        menugroup.setAttribute("oncommand", "parentNode.insert(event.target.index);");
        menugroup.setAttribute("orient", "vertical");
        menugroup.setAttribute("context", "_child");

        var context = menugroup
            .appendChild(document.createXULElement("menupopup"))
            .appendChild(document.createXULElement("menuitem"));
        context.setAttribute("label", "Удалить элемент?");
        context.setAttribute("oncommand", "event.stopPropagation(); menupopup.delete(popupNode.index);");
        context.menupopup = popup;

        data.forEach((text, ind) => {
            var menuitem = menugroup.appendChild(document.createXULElement("menuitem"));
            menuitem.setAttribute("label", text.trimLeft().replace(/\s+/g, " ").slice(0, 70));
            menuitem.index = ind;
        });
        popup.append(df);
    }
})(this.appendChild(document.createXULElement("menupopup")));

/*Initialization Code*/
window.arycb_BBCodeClipboardStrings = this.clipboardStrings = [];   // Массив буфера обмена

// -------------------------------------------------------
// Функция fHLD_Get_ListClipboardPrim 
// получить список сохранёного буфера обмена
//
fnHLD_Get_ListClipboardPrim = function (){
var cs = arycb_BBCodeClipboardStrings; 
return (cs.slice(0)); 
}; 

//Список сохранёного буфера обмена
//Не вызываем это, обработка по таймеру или по событию ЛКМ
//-----Обработчики буфера обмена

this.MAX_ENTRIES = 16;               //Максимальное число записей 16
this.CHECK_INTERVAL = 1000;      //Время опроса буфера 1000 миллисекунд
this.type = "menu";
this.orient = "horizontal";
this._menupopup = this.appendChild(document.createXULElement("menupopup"));
this._menupopup.setAttribute("oncommand", "this.parentNode.handleCommand(event.target);");

this.checkClipboard = function() {
    var clipStr = readFromClipboard();
    if(clipStr && this.clipboardStrings.indexOf(clipStr) == -1)
        this.storeString(clipStr);
};

this.storeString = function(str) {
    var cs = this.clipboardStrings;
    cs.push(str);
    while(cs.length > this.MAX_ENTRIES)
        cs.shift(); 

    var mi = document.createXULElement("menuitem");
    mi.setAttribute("label", str);
   

    this._menupopup.appendChild(mi);
    while(this._menupopup.childNodes.length > this.MAX_ENTRIES)
        this._menupopup.removeChild(this._menupopup.firstChild);
};

this.handleCommand = function(mi) {
    var indx = Array.indexOf(mi.parentNode.childNodes, mi);
    if(indx != -1)
        inserter.insert(this.clipboardStrings[indx]);
};

var inserter = {
        get docShell() {
            delete this.docShell;
            return this.docShell = "docShell" in document
                && document.docShell instanceof Ci.nsIDocShell
                ? document.docShell : window.docShell;
        },
        get insertText() {
            delete this.insertText;
            return this.insertText = text => {
                if (!this.docShell.isCommandEnabled("cmd_insertText")) return;
                var params = "createCommandParams" in Components.utils
                    ? Cu.createCommandParams()
                    : Components.classes["@mozilla.org/embedcomp/command-params;1"]
                        .createInstance(Components.interfaces.nsICommandParams);
                params.setStringValue("state_data", text);
                this.docShell.doCommandWithParams("cmd_insertText", params);
            }
        },
        insert(text) {
            var br = document.activeElement;
            !br || br.localName != "browser" || !br.isRemoteBrowser
            ? this.insertText(text) : br.messageManager.loadFrameScript(
                `data:,(${this.insertText})${encodeURIComponent(text.toSource())}`
            , false, true);
        }
    };

setInterval(function(button) {
    button.checkClipboard();
}, this.CHECK_INTERVAL, this);

this.setAttribute("onpopupshowing", "this.checkClipboard();");


var ios = Components.classes["@mozilla.org/network/io-service;1"].
  getService(Components.interfaces.nsIIOService);
var sss = Components.classes["@mozilla.org/content/style-sheet-service;1"].
  getService(Components.interfaces.nsIStyleSheetService);
  
var css = new String();
css = css + '@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");';
css = css + 'tooltip[label^="' + this.label + '\\000a\\000a"] {';
css = css + "-moz-appearance: none !important;";
css = css + "border: 1px solid silver !important;";
css = css + "max-width: none !important;";
css = css + "background: black !important;";
css = css + "color: silver !important;";
css = css + "font-family: monospace !important;";
css = css + "}";
var uss = ios.newURI("data:text/css," + encodeURIComponent(css), null, null);

if (!sss.sheetRegistered(uss, sss.AGENT_SHEET)) sss.loadAndRegisterSheet(uss, sss.AGENT_SHEET);
this.onDestroy = function(reason) {
  if (reason == "update") {
    if (sss.sheetRegistered(uss, sss.AGENT_SHEET)) sss.unregisterSheet(uss, sss.AGENT_SHEET);
  }
  if (reason == "delete") {
    if (sss.sheetRegistered(uss, sss.AGENT_SHEET)) sss.unregisterSheet(uss, sss.AGENT_SHEET);
  }
}

this.showClipboard = function() {
  var code = custombuttons.cbService.readFromClipboard();
 this.tooltipText = code ? this.label + "\n\n" + code: this.label;
}
this.setAttribute("onmouseover", "this.showClipboard()");

this.handleCommand = function(mi) {
    var indx = Array.indexOf(mi.parentNode.childNodes, mi);
    if(indx != -1)
        inserter.insert(this.clipboardStrings[indx]);
};

// ---------------------------- Взять все Ссылки на странице ----------------------------------------------------------------   
 this.getUrls =()=> {
     const foStream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(Ci.nsIFileOutputStream);
      let process = Cc["@mozilla.org/process/util;1"].createInstance(Ci.nsIProcess);
      let prof = Services.dirsvc.get('ProfD', Ci.nsIFile);
       prof.append("custombuttons");
       prof.append("urllist" + Math.random() + ".txt");     

 let win = document.commandDispatcher.focusedWindow, doc = win.document;
 let sel = doc, winSel = win.getSelection();

    if(winSel.toString()){
       sel = doc.createElement('div');
       sel.appendChild(winSel.getRangeAt(0).cloneContents());
       };

   let str = '', links = sel.getElementsByTagName('a');
       for(let i = 0, lnk; lnk = links[i]; i++) {
         if(lnk.href)str += lnk.href + '\r\n'
         };

// в буфер берем домен сайта, для своих нужд. другая ф-ция берет домен, здесь не привожу.
//      gClipboard.write(getDomain());

     foStream.init(prof, 0x02|0x08|0x20, 0666, 0);
     foStream.write(str, str.length);
     foStream.close();
     launchAP(prof);
// можно просто сразу запустить файл с сылками в текстовом редакторе ОС. 
// тогда то шо ниже разделителя убрать\закоментить 
//     file.launch(); 
// ----------------------------------------------------------------------------

function launchAP(file) {
      progPath = PROF.path + "\\SOFT_PM\\AkelPad-my\\sAkelPad.cmd";
     arg = [file.path];
      startProcess(progPath, arg);  // тоже другая ф-ция, проверяет параметры, наличие файла и запускает программу. не стандартная. не привожу(есть тут на форуме)
     }
// -----------------------------------------------------------------------------
  };

javascript:var sLFd=document,DlnK=document.links;sLFw=window.name;w=window.open();w.document.write('<base%20target='+sLFw+'><b>%20Всего%20ссылок '+DlnK.length+' с</b>:<br><b>'+sLFd.title+'</b><br>'+sLFd.URL.link(sLFd.URL)+'<hr>');for(lNK=0;lNK<DlnK.length;lNK++) w.document.write('<p>'+'<b>'+lNK+'. '+'</b>'+DlnK[lNK].text+'&nbsp;'+DlnK[lNK].href.link(DlnK[lNK]));

//Добавыть в контекстное меню страницы пункт "Запомнить изображение как base64"..........................................................................................
(popup => addEventListener("popupshowing", {
    handleEvent(e) {
        if (this.shouldHide) return;

        var menuitem = document.createXULElement("menuitem");
        menuitem.id = "content-baseItem";
        menuitem.className = "menuitem-iconic";
        menuitem.setAttribute("oncommand", "copyImageAsBase64()");
        menuitem.setAttribute("label", "Запомнить изображение как base64");
        menuitem.setAttribute("image", "data:image/x-icon;base64,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");
        popup.append(menuitem);
        addDestructor(() => menuitem.remove());

        menuitem.copyImageAsBase64 = () => gBrowser.selectedBrowser.messageManager
            .loadFrameScript("data:;charset=utf-8," + encodeURIComponent(this.code()), false);

        this.handleEvent = () => menuitem.hidden = this.shouldHide;
    },
    get shouldHide() {
        return !gContextMenu.onImage;
    },
    code: () => `(selectors => {

        var getImage = doc => {
            var elm = doc.querySelector(selectors.shift());
            if (selectors.length) elm = getImage(elm.contentDocument);
            return elm;
        }
        var image = getImage(content.document);

        var canvas = image.ownerDocument.createElementNS("${xhtmlns}", "canvas");
        canvas.width = image.naturalWidth;
        canvas.height = image.naturalHeight;
        var ctx = canvas.getContext("2d");
        ctx.drawImage(image, 0, 0);
        var base64 = canvas.toDataURL();

        Cc["@mozilla.org/widget/clipboardhelper;1"].getService(Ci.nsIClipboardHelper)
            .copyStringToClipboard(base64, Ci.nsIClipboard.kGlobalClipboard);

        Cc["@mozilla.org/alerts-service;1"].getService(Ci.nsIAlertsService)
            .showAlertNotification(base64, "${self.label}", "Запомнил изображение как base64");
    })(${
        JSON.stringify(gContextMenu.targetSelectors)
    })`
}, false, popup || 1))(document.getElementById("contentAreaContextMenu"));

cmd() {
        var msg = "CB:GetImageScreenRectForMosuseZoom";
        var code = `(selectors => {
            var doc = content.document;
            for(var sel of selectors) {
                var node = doc.querySelector(sel);
                node instanceof HTMLImageElement
                    ? sendAsyncMessage("${msg}", Object.assign(
                        {src: node.currentSrc}, BrowserUtils.getElementBoundingScreenRect(node)
                    )) : doc = node.contentDocument;
            }
        })(`;
        messageManager.addMessageListener(msg, this);
        addDestructor(() => messageManager.removeMessageListener(msg, this));