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What is Browser cookies?

Browser cookies are small text files that websites store on your device to remember information about you — like your login, settings, or items in a cart. They make browsing smoother, but some also track your activity across sites.

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Watch a 2-minute lesson with voice + animation that explains browser cookies.
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Key things to understand

  • 1They're small files websites save on your device.
  • 2They remember logins, preferences, and cart contents.
  • 3Session cookies vanish when you close the browser; others persist.
  • 4Third-party cookies can track you across websites.

Frequently asked questions

What are browser cookies?
Small files websites store on your device to remember information like logins, settings, and activity.
Are cookies bad for privacy?
Some are harmless and helpful, but third-party tracking cookies can follow you across sites, raising privacy concerns.
Should I accept or reject cookies?
Essential cookies are usually fine; you can often reject non-essential tracking cookies for more privacy.

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