<?xml version="1.0"?>

<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>

<window title="Tree Example" id="tree-window"
   xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
   onload="setView();">

<script>
var treeView = {
    rowCount : 10000,
    getCellText : function(row,column){
      if (column.id == "namecol") return "Row "+row;
      else return "February 18";
    },
    setTree: function(treebox){ this.treebox = treebox; },
    isContainer: function(row){ return false; },
    isSeparator: function(row){ return false; },
    isSorted: function(){ return false; },
    getLevel: function(row){ return 0; },
    getImageSrc: function(row,col){ return null; },
    getRowProperties: function(row,props){},
    getCellProperties: function(row,col,props){},
    getColumnProperties: function(colid,col,props){}
};

function setView()
{
    document.getElementById('my-tree').view=treeView;
}
</script>

<tree id="my-tree" flex="1">
  <treecols>
    <treecol id="namecol" label="Name" flex="1"/>
    <treecol id="datecol" label="Date" flex="1"/>
  </treecols>
  <treechildren/>
</tree>

</window>

Ошибка: uncaught exception: [Exception... "Security error"  code: "1000" nsresult: "0x805303e8 (NS_ERROR_DOM_SECURITY_ERR)"  location: "chrome://global/content/bindings/tree.xml Line: 0"]