A Firefox/Chrome extension to modify HTTP requests :-)

gooreplacer promo image
What is gooreplacer?

gooreplacer is a Firefox add-on that provides an easy-to-use interface for modifying HTTP requests. With features like blocking, redirecting, and modifying headers, users can take control of their browsing experience. Additionally, gooreplacer allows for rule export/import and synchronization between Firefox and Chrome, making it a versatile tool for advanced users and developers. Try gooreplacer today and enhance your browsing experience!

This add-on was removed from Firefox Browser Add-ons on 2022-10-19
Stats date:
Users: 10,017
Rating: 4.88 (323)
Version: 3.13.0 (Last updated: 2022-05-21)
Creation date: 2014-09-18
Weekly download count: NaN
Firefox on Android: No
Manifest version: 2
  • webRequest
  • webRequestBlocking
  • downloads
  • http://*/*
  • https://*/*
Size: 1.04M
Email: Click to see
URLs: Website
Risk impact: High risk impact
Risk likelihood: High risk likelihood

Other platforms

Not available on Chrome
Not available on Edge

This add-on is similar to HTTPS Everywhere with a more user-friendly interface.


  1. Block request
  2. Redirect request
  3. Modify headers
  4. Export/Import rules, sync between Firefox and Chrome
  5. Live Test
Chrome version:
User reviews
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Risk impact

gooreplacer is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install gooreplacer if you trust the publisher.

Risk likelihood

gooreplacer may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

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