The Tor Browser / file revision

 <?xml version="1.0"?>

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

 <window xmlns:html="http://www.w3.org/1999/xhtml"

         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"

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 <html:style>

 * { position: fixed; }

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       <treecol id="firstname" label="First Name" primary="true"/>

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