The Tor Browser / file revision

 <?xml version="1.0" encoding="UTF-8"?>

 <!DOCTYPE whatever PUBLIC "-//MOZ//WHATEVER//EN" "http://mozilla.org/ns/foo">

 <foo xmlns="http://mozilla.org/ns" xmlns:falsexul="http://mozilla.org/ns3">

     <!-- document to test namespaces-->

     <baz /> 

     <bar> &lt;robots&gt; &amp; &lt;aliens&gt;

         <mozilla xmlns="http://mozilla.org/ns2"> a a a <moz>a a</moz> éèàùûî</mozilla>

         <firefox>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</firefox>

     </bar>

     <xul xmlns="http://mozilla.org/ns3" xmlns:other="http://mozilla.org/ns/other">

       <box>

         <other:what>lorem ipsum</other:what>

         <description other:yes="no">xul fake</description>

       </box>

     </xul>

     <falsexul:xul xmlns:other="http://mozilla.org/ns/other">

       <box>

         <other:what>lorem ipsum</other:what>

         <description>xul fake</description>

         <what xmlns="http://mozilla.org/ns/other">lorem ipsum <falsexul:label value="hello" /> the return</what>

       </box>

     </falsexul:xul>

     <ho:xul xmlns="http://mozilla.org/ns4" xmlns:ho="http://mozilla.org/ns4" xmlns:other="http://mozilla.org/ns/other">

       <box>

         <other:what>lorem ipsum</other:what>

         <description ho:foo="bar" bla="hello" other:yes="no" ho:foo2="bar2">xul fake</description>

       </box>

     </ho:xul>

 </foo>