rem: browser.loadGroup(URIs); 
add: var tab = browser.loadGroup(URIs); if (!PREF.getBoolPref("browser.tabs.loadInBackground")) browser.selectedTab = tab; 
context:   openGroupBookmark: function (aURI, aTargetBrowser)  {    if (aTargetBrowser == "current" || aTargetBrowser == "tab") {      var w        = getTopWin();      var browser  = w.document.getElementById("content");      var resource = RDF.GetResource(aURI);      var urlArc   = RDF.GetResource(NC_NS+"URL");      RDFC.Init(BMDS, resource);      var containerChildren = RDFC.GetElements();      var tabPanels = browser.mPanelContainer.childNodes;      var tabCount  = tabPanels.length;      var index = 0;      var URIs = [];      while (containerChildren.hasMoreElements()) {        var res = containerChildren.getNext().QueryInterface(kRDFRSCIID);        var target = BMDS.GetTarget(res, urlArc, true);        if (target) {          URIs.push({ URI: target.QueryInterface(kRDFLITIID).Value });          ++index;        }      }      browser.loadGroup(URIs);    } else {      dump("Open Group in new window: not implemented...\n");    }  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/7f9370ae74a09b543666d5bb78f6bacc0fc1ea56/bookmarks.js/buggy/xpfe/components/bookmarks/resources/bookmarks.js