GO to File at this location :- app\code\core\Mage\Core\Model\Session\Abstract\Varien.php

And commenting out the following :

// session cookie params
$cookieParams = array(
    'lifetime' => $cookie->getLifetime(),
    'path'     => $cookie->getPath()//,
    //'domain'   => $cookie->getConfigDomain(),
    //'secure'   => $cookie->isSecure(),
    //'httponly' => $cookie->getHttponly()
);

//if (!$cookieParams['httponly']) {
//    unset($cookieParams['httponly']);
//    if (!$cookieParams['secure']) {
//        unset($cookieParams['secure']);
//        if (!$cookieParams['domain']) {
//            unset($cookieParams['domain']);
//        }
//    }
//}