Can someone explain what are sessions and how they work? or What are sessions and why are they import

Sessions are what make websites "remember" you while you’re browsing. Without ’em, you’d have to log in every time you clicked a link.

They work by storing a unique ID (usually in a cookie) that points to your data on the server. So no, they’re not *just* cookies—cookies are just the messenger.

If you’re learning, Firefox DevTools lets you inspect session cookies live. Super handy for debugging!