Browser Harden - Privacy and security extension

Browser extension to remove JS clutter and improve privacy.


Browser Harden (or browser-harden) is a browser extension that aims to patch or remove non-essential JS APIs in order to reduce the browser attack surface and improve privacy.

Main features:

A detailed list of features can be found in the full feature list.


You can install Browser Harden from Mozilla Add-ons. There is no package for Google Chrome yet.

Source code

The browser-harden code is hosted on GitHub at gkbrk/browser-harden. You can download the source code in a ZIP archive as well.


The most important method of contribution is to file reports for broken websites and new fingerprinting methods / Web APIs that are not covered by browser-harden.

Another way to contribute is to share the extension with other people in order to increase usage.


Browser Harden is relased under the GNU General Public License v3.0. Unless otherwise specified, the Browser Harden sources are copyright Gokberk Yaltirakli.

Latest commits

Date Commit message

Gokberk Yaltirakli -