<?xml version="1.0" encoding="UTF-8" ?> <?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"> <hbox flex="1" style="direction: rtl;"> <richlistbox style="width: 100px; direction: rtl;"> <item>this is a really really really really long test sentence</item> </richlistbox> <splitter/> <browser flex="1" src="" type="content-primary"/> </hbox> </window>