Browser extensions (also known as browser add-ons) are small programs that extend the functionality of your Web browser, including enhanced privacy features. Browser extensions are somewhat standardized, so an extension that works in Firefox might also work in Chromium, for example.
If you use Firefox or a derivative (such as GNU IceCat or LibreWolf) we recommend installing:
- CanvasBlocker — Resist browser fingerprinting by obfuscating a common source of data.
- Cookie AutoDelete — Selectively delete cookies and other persistent data automatically.
- uBlock Origin — Block ads and trackers.
Browser extensions have access to various aspects of your browsing activity (depending on the permissions requested by the extension), and these extensions can have privacy and security flaws, so you should keep the number of extensions you install to a minimum.
Installing extensions in Tor Browser beyond those already included in its standard configuration is inadvisable, since they can weaken the browser’s fingerprinting resistance.