third_party/js/mozmill/shared-modules/software-update.js
function softwareUpdate_closeDialog() {
    if (this._controller) {
      this._controller.keypress(null, "VK_ESCAPE", {});
      this._controller.sleep(500);
      this._controller = null;
      this._wizard = null;
    }
  }
function softwareUpdate_closeDialog() {
    if (this._controller) {
      this._controller.keypress(null, "VK_ESCAPE", {});
      this._controller.sleep(500);
      this._controller = null;
      this._wizard = null;
    }
  }
function softwareUpdate_closeDialog ( ) { if ( this . _controller ) { this . _controller . keypress ( null , "VK_ESCAPE" , { } ) ; this . _controller . sleep ( 500 ) ; this . _controller = null ; this . _wizard = null ; } }
Close the software update dialog
Close the software update dialog