add:               var enabled = false;  var homePages = gData.navigatorData.homePages; if (homePages.length == 1) { var browser = getMostRecentBrowser(); enabled = browser && browser.browsers.length > 1; } else { var currentURIs = getCurrentPageGroup(); if (currentURIs.length == homePages.length) { for (var i = 0; !enabled && i < homePages.length; ++i) { if (homePages[i] != currentURIs[i]) enabled = true; } } else if (currentURIs.length > 1) { enabled = true; } }  var currentPageGroupButton = document.getElementById("browserUseCurrentGroup"); currentPageGroupButton.disabled = !enabled; 
context: function updateHomePageButtons(){  var homepage = document.getElementById("browserStartupHomepage").value;  var currentPageButton = document.getElementById("browserUseCurrent");  var defaultPageButton = document.getElementById("browserUseDefault");  currentPageButton.disabled = (homepage == getCurrentPage());  defaultPageButton.disabled = (homepage == gDefaultPage);}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/ce4d8afc858ef2a454a59281bb5ba8488f725516/pref-navigator.js/buggy/xpfe/components/prefwindow/resources/content/pref-navigator.js