Init custom browser in Ranorex

var RMRanorexAttacher = {
    //Add document inside browser to Ranorex, so you can access DOM of this document.
    AttachBrowser: function(browser) {
        var rxResolverCallback = function(browserObj)
                {
                    // refresh window from tab
                    return browserObj.contentWindow;
                };

        var rxCallback = function(str, arg1, arg2, arg3)
                    {
                        try
                        {
                            if (str == "SelectTab")
                            {
                                //No tabs support
                                return null;
                            }
                            else if (str == "CloseTab")
                            {
                                //No tabs support
                                return null;
                            }
                            else if (str == "GetZoom")
                            {
                                return arg1.markupDocumentViewer.fullZoom+'';
                            }
                            else if (str == "PerformClick")
                            {
                                ev = document.createEvent('MouseEvents');
                                ev.initMouseEvent('click', true, false, arg1, 1, 0, 0, 1, 1, false, false, false, false, 0, null);
                                arg2.dispatchEvent(ev);
                            }
                        }
                        catch(e)
                        {
                            return null;
                        }
                    };

        const cid = "@ranorex.com/RanorexAutomation3;1";
        var obj = Components.classes[cid].createInstance();

        var rxAutomation = obj.QueryInterface(Components.interfaces.IRanorexAutomation3);

        rxAutomation.AddTabWindow(window, browser, rxCallback, rxResolverCallback);
        rxAutomation.SetSelectedTabWindow(window, browser);
    },

    DetachBrowser: function(browser) {
        const cid = "@ranorex.com/RanorexAutomation3;1";
        var obj = Components.classes[cid].createInstance();

        var rxAutomation = obj.QueryInterface(Components.interfaces.IRanorexAutomation3);

        rxAutomation.RemoveTabWindow(window, browser);
    }
};