rem: pref.setBoolPref(PREF_EXTENSIONS_UPDATE_ENABLED, this.shouldAutoCheck); 
add: pref.setBoolPref(PREF_UPDATE_EXTENSIONS_ENABLED, this.shouldAutoCheck); 
context:   onWizardFinish: function ()  {    var pref = Components.classes["@mozilla.org/preferences-service;1"]                         .getService(Components.interfaces.nsIPrefBranch);    if (this.shouldSuggestAutoChecking)      pref.setBoolPref(PREF_EXTENSIONS_UPDATE_ENABLED, this.shouldAutoCheck);   },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/e9a575719b6355cfc18b9eea3cd810121df457f7/update.js/buggy/toolkit/mozapps/extensions/content/update.js