rem: this.mPrefService.SetIntPref(aPrefName, aPrefValue); 
add: this.mPrefService.setIntPref(aPrefName, aPrefValue); 
context:   setIntPref: function (aPrefName, aPrefValue)    {      try        {          this.mPrefService.SetIntPref(aPrefName, aPrefValue);        }      catch(e)        {        }    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/f1f4e0d7a57ab7bc6d826daa2e6141efd69e1dce/nsUserSettings.js/clean/xpfe/global/resources/content/nsUserSettings.js