Session doesn't expire after closing browser

Hi all,
I'm not really sure whether this is the right forum to post site-related problem, i think the closest section is here. Anyway, the problem is: though i DON'T check "Log me on automatically each visit" after i close and re-open my Firefox, i find myself logged in automatically. That means some setting in php.ini (php configuration) like session.cookie_lifetime is set to a value other than "zero (which means session will end on browser close)".

I don't have such problem on other old phpbb2 forums, maybe this is specific to phpbb3 which can be set through ACP??? Any comment from admins or moderators are welcomed.

TIA-.

Yes, this is the correct section for issues with the site.

I've checked and everything appears to be fine at this end.

Thanks Andrew, however it's still happening, it must be about a setting in ACP of phpbb or something with php.ini session configuration.

Like I said, everything checks out at this end.

Like I said, everything checks out at this end.

Sorry, i'm not able to interpret what you meant?

I've checked and I don't see any problem with the configuration at this end.

Weird, no other websites cause such problem, i mean though i uncheck "automatic login", session gets ended after closing browser and re-opening browser+navigating website brings me to login page as expected but not in forums.nba-live.com.

Sorry, there's not much else I can suggest for the moment except to hit logout when you're done in the Forum.