When I stay logged in on Firefox after my browser closes, I can't see any new posts, so I have to log out and then log back in. Also, when I do log in, it still shows the "Log in or sign up" prompt as if I had simply hit F5. Only once I leave the page do I see that I'm logged in. Please fix.
Uhh... no one on the site seems to be experiencing this issue. Have you tried clearing your cookies, or trying a different browser.