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What Is a Browser Extension?

Understand add-ons that change or expand what a browser can do.

Quick Answer

Extensions are small browser add-ons; install only ones you trust and periodically review which extensions still have access.

Step by Step

  1. Open the browser and the relevant page or Settings section.
  2. Extensions are small browser add-ons; install only ones you trust and periodically review which extensions still have access.
  3. Test the result before clearing additional data or resetting more settings.
  4. If troubleshooting, try a private window or another browser to help determine whether the problem is browser-specific.

If That Doesn't Work

  • Chrome, Edge, Firefox, Safari, and mobile browsers use different menu names and layouts.
  • Clearing cookies, resetting settings, or removing saved passwords can sign you out or remove conveniences, so review the selected options first.