How cookies work?

Question

I wanted to know the interactions of a browser (i.e. Firefox ) and a website.

When I submit my user name and password to the login form, what happens? I think that we

Answer 1

Cookies are small data packets that the Web Pages load on to the browser for various purposes.

Every time you re-visit a URL, the browser sends back a tiny package of this information back to the server which detects that you've returned to the page.

• Cookies are the reasons that keeps you logged into sites so that you don't have to enter ID and password every time you visit the website.
• Webmasters can use these cookies for monitoring the activity of Internet users.
• Some sites use third-party cookie to track your Web habits for marketing purposes.