rem: else openDialog("chrome: "Preferences", features); 
add: if (paneID) { var pane = win.document.getElementById(paneID); win.document.documentElement.showPane(pane); } } else openDialog("chrome: "Preferences", features, paneID); 
context: function openPreferences(){  var instantApply = getBoolPref("browser.preferences.instantApply", false);  var features = "chrome,titlebar,toolbar,centerscreen" + (instantApply ? ",dialog=no" : ",modal");  var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]                     .getService(Components.interfaces.nsIWindowMediator);  var win = wm.getMostRecentWindow("Browser:Preferences");  if (win)    win.focus();  else     openDialog("chrome://browser/content/preferences/preferences.xul",                "Preferences", features);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/9a585b12666cfc2f64ee4dd2f5b8d2917e605291/utilityOverlay.js/buggy/browser/base/content/utilityOverlay.js