rem: return gBrowser.webNavigation; 
add: return helpBrowser.webNavigation; 
context: function getWebNavigation(){  return gBrowser.webNavigation;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/d15ebe6a3f4276d341479a18705b0b8bb7735847/help.js/clean/extensions/help/resources/content/help.js