text: const TAG = "[MONITOR]";
  console.log(TAG);
  
  const persistData = new PersistData(firebase);
  
  
  // for each tabs shoud create one class Domain
  // for each tabs focus shoud create one classe Tacker
  
  // start monitoring
  const monitor = new MonitorTabs(true, persistData);
  
  // backup in IndexDb
  setInterval(function __backupTackers() {
    monitor.persistData();
  }, 1000 * 10);
  
  // send data firebase
  setInterval(function __sendaDataFirebase() {
  
  });
  