rem: var bundle = document.getElementById("bundlePreferences"); var button = document.getElementById("masterPassword"); button.label = bundle.getString(noMP ? "setMasterPassword" : "changeMasterPassword"); button.setAttribute("accesskey", bundle.getString(noMP ? "setMasterPassword_accesskey" : "changeMasterPassword_accesskey")); 
add: var button = document.getElementById("changeMasterPassword"); 
context:   _initMasterPasswordUI: function ()  {    var noMP = !this._masterPasswordSet();    var bundle = document.getElementById("bundlePreferences");    var button = document.getElementById("masterPassword");    button.label = bundle.getString(noMP ? "setMasterPassword" : "changeMasterPassword");    button.setAttribute("accesskey",                        bundle.getString(noMP ? "setMasterPassword_accesskey" : "changeMasterPassword_accesskey"));    button.disabled = noMP;    var checkbox = document.getElementById("useMasterPassword");    checkbox.checked = !noMP;  },
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/ae7bfbc47839afd0aa886c9de1ca64143cb77144/security.js/buggy/browser/components/preferences/security.js