public function setThirdPartyCookie($idVisitor)
    {
        if (!$this->shouldUseThirdPartyCookie()) {
            return;
        }

        $cookie = $this->makeThirdPartyCookieUID();
        $idVisitor = bin2hex($idVisitor);
        $cookie->set(0, $idVisitor);
        $cookie->save();

        Common::printDebug(sprintf("We set the visitor ID to %s in the 3rd party cookie...", $idVisitor));
    }