PHP session unset problem

I have a problem with my php sessions, when I delete the session in firefox the session is still available? I don’t have this problem in IE.

:z: Does anyone know an answer to my problem?

Here is my code


session_start();

	$_SESSION['logged_in']=false;
	session_unset();
	session_unregister('username');
	session_unregister('logged_in');
	//unset($_SESSION['username']);
	//unset($_SESSION['logged_in']);
	session_write_close();
	//session_destroy(); 

	print "<center><b>You have been logged out.</b></center><META HTTP-EQUIV = 'Refresh' Content = '2; URL =".$strRootUrl."'>";

Thanks in advance.:smirk: