rem: prompter.showUpdateHistory(); 
add: prompter.showUpdateHistory(window); 
context:   showUpdates: function ()  {    var prompter = Components.classes["@mozilla.org/updates/update-prompt;1"]                             .createInstance(Components.interfaces.nsIUpdatePrompt);    prompter.showUpdateHistory();    },
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/82d50f4e1ffb006877014c9899e6703a7abe8d34/advanced.js/clean/browser/components/preferences/advanced.js