Tab Mix Plus

function TMP_closeWindow(){
   
  var _close = closeWindow(false);
 
  var _canClose = warnOnClose();

  if (_canClose) {
     var isRestartApp = TMP_closeWindow.caller.caller.name == "restartApp";
     SessionManager.deinit(numberOfWindows() == 1, !isRestartApp);
  }
  return _canClose;
 
}

function warnOnClose(){
  var pref = "extensions.tabmix.warnAboutClosingTabs.timeout";
  var startTime = new Date().valueOf();
  var oldTime = gPref.prefHasUserValue(pref) ? gPref.getCharPref(pref) : 0;
  var _canClose = getBrowser().warnAboutClosingTabs("All_onExit");
  gPref.setCharPref(pref, oldTime*1 + (new Date().valueOf() - startTime));
  return _canClose;
}

}

function TMP_closeWindow(){
   
  if (!closeWindow(false))
     return false;
 
  var pref = "extensions.tabmix.warnAboutClosingTabs.timeout";
  var startTime = new Date().valueOf();
  var oldTime = gPref.prefHasUserValue(pref) ? gPref.getCharPref(pref) : 0;
  var _canClose = getBrowser().warnAboutClosingTabs("All_onExit");
  gPref.setCharPref(pref, oldTime*1 + (new Date().valueOf() - startTime));

  if (_canClose) {
     var isRestartApp = TMP_closeWindow.caller.caller.name == "restartApp";
     SessionManager.deinit(numberOfWindows() == 1, !isRestartApp);
  }
  return _canClose;
 
}

function TMP_closeWindow(){
  if (!closeWindow(false))
     return false;

  var wm = Cc["@mozilla.org/appshell/window-mediator;1"].
           getService(Ci.nsIWindowMediator);
  var windowcount = 0;
  var pagecount = 0;
  var browserEnum = wm.getEnumerator("navigator:browser");
  while (browserEnum.hasMoreElements()) {
     windowcount++;

     var browser = browserEnum.getNext();
     var tabbrowser = browser.document.getElementById("content");
     if (tabbrowser)
        pagecount += tabbrowser.browsers.length;
  }

  var quitType = arguments.callee.caller.caller.name;
  var showPrompt = true;
  if (/^Mac/.test(navigator.platform) || pagecount < 2)
     showPrompt = false;
  else {
     try {
       var sessionWillBeSaved = gPref.getIntPref("browser.startup.page") == 3 ||
                                gPref.getBoolPref("browser.sessionstore.resume_session_once");
       if (sessionWillBeSaved || !gPref.getBoolPref("browser.warnOnQuit"))
          showPrompt = false;
       // its can't be restart here, restart don't call closeWindow
       else if (quitType == "restart")
          showPrompt = gPref.getBoolPref("browser.warnOnRestart");
       else
          showPrompt = gPref.getBoolPref("browser.tabs.warnOnClose");
     } catch (ex) {}
  }

  var _canClose = true;
  // we only show warnAboutClose if firefox didn't do it already
  // if showPrompt is true then prompt was shown by firefox code from BrowserGlue.prototype._onQuitRequest
  if (!showPrompt) {
      var pref = "extensions.tabmix.warnAboutClosingTabs.timeout";
      var startTime = new Date().valueOf();
      var oldTime = gPref.prefHasUserValue(pref) ? gPref.getCharPref(pref) : 0;
      _canClose = getBrowser().warnAboutClosingTabs("All_onExit");
      gPref.setCharPref(pref, oldTime*1 + (new Date().valueOf() - startTime));
  }

  if (_canClose) {
     var isRestartApp = quitType == "restartApp";
     SessionManager.deinit(numberOfWindows() == 1, !isRestartApp);
  }
  return _canClose;

}