/**
* Get the subscribers first name with fallback to customer data
*
* @return string
*/
public function getSubscriberFirstname()
{
$firstname = parent::getSubscriberFirstname();
if (!$firstname && Mage::getStoreConfig('newsletterextended/fields/customer_fallback') && $this->getCustomer()) {
$firstname = $this->getCustomer()->getFirstname();
}
return $firstname;
}
