rem: var folderResource = RDF.GetResource(folderURI); if(folderResource) { var msgFolder = folderResource.QueryInterface(Components.interfaces.nsIMsgFolder); return msgFolder; } 
add: var folderResource = RDF.GetResource(folderURI); if(folderResource) { var msgFolder = folderResource.QueryInterface(Components.interfaces.nsIMsgFolder); return msgFolder; } 
context: function GetMsgFolderFromURI(folderURI){	var folderResource = RDF.GetResource(folderURI);	if(folderResource)	{		var msgFolder = folderResource.QueryInterface(Components.interfaces.nsIMsgFolder);		return msgFolder;	}	return null;}
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