rem: const krAnonymous = this.RDF.GetAnonymousResource(); 
add: const krBMDS = this.RDF.GetDataSource("rdf:bookmarks"); const kBMSvc = krBMDS.QueryInterface(Components.interfaces.nsIBookmarksService); const krAnonymous = kBMSvc.GetAnonymousResource(); 
context:   createFolderWithID: function (aTitle, aRelativeItem, aParentFolder)  {    const krAnonymous = this.RDF.GetAnonymousResource();        var args = [{ property: NC_NS + "parent", resource: aParentFolder },                { property: NC_NS + "Name",   literal:  aTitle },                { property: NC_NS + "URL",    literal:  krAnonymous.Value}];    this.doBookmarksCommand(aRelativeItem, NC_NS_CMD + "newfolder", args);    // Tidy up.    const krURL = this.RDF.GetResource(NC_NS + "URL");    const krBMDS = this.RDF.GetDataSource("rdf:bookmarks");    const krCurrURL = krBMDS.GetTarget(krAnonymous, krURL, true);    const krEmpty = this.RDF.GetLiteral("");    krBMDS.Change(krAnonymous, krURL, krCurrURL, krEmpty);        return krAnonymous;  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/b58a221f2fde203195889c6df948140558b290e2/bookmarksOverlay.js/buggy/xpfe/components/bookmarks/resources/bookmarksOverlay.js