Not sure if this belongs here or at webapps... please move if appropriate.
I don\'t even know if such a thing is possible, but is there an extension or add-on for ei
No. Session variables are stored on the server. The only thing that would be visible in Firefox is the ID of the session, stored in the session cookie (e.g. PHP_SESS_ID=randomgarbage
).
You'd have to explicitly write a script that would dump out the session variables, something as simple as:
dumpsession.php:
<pre>
<?php
var_dump($_SESSION);