diff --git a/4.1-Extensions.md b/4.1-Extensions.md
index 12b8ea6..1b5adf8 100644
--- a/4.1-Extensions.md
+++ b/4.1-Extensions.md
@@ -16,7 +16,7 @@ This list covers privacy and security related extensions only. While we believe
* [Multi-Account Containers](https://addons.mozilla.org/firefox/addon/multi-account-containers)
- Might be useful if you want to log into the same site using different accounts as you will be able to select certain tabs to use specific VPN servers
* [Header Editor](https://addons.mozilla.org/firefox/addon/header-editor/) | [GitHub](https://github.com/FirefoxBar/HeaderEditor)
- - Allows you to run [Rules](https://github.com/arkenfox/user.js/wiki/4.2.4-Header-Editor) to modify modify the request header and response header, cancel a request and redirect a request. Be careful not to alter your passive fingerprint
+ - Allows you to run rules to modify modify the request header and response header, cancel a request and redirect a request. Be careful not to alter your passive fingerprint
* [Request Control](https://addons.mozilla.org/firefox/addon/requestcontrol/) | [GitHub](https://github.com/tumpio/requestcontrol) | [Manual](https://github.com/tumpio/requestcontrol/blob/master/_locales/en/manual.md) | [Testing links](https://github.com/tumpio/requestcontrol/wiki/Testing-links)
* [Redirector](https://addons.mozilla.org/firefox/addon/redirector/) ✔ [Privacy](https://github.com/einaregilsson/Redirector/blob/master/privacy.md) | [GitHub](https://github.com/einaregilsson/Redirector)
* [CanvasBlocker](https://addons.mozilla.org/firefox/addon/canvasblocker/) ✔ [Privacy](https://addons.mozilla.org/firefox/addon/canvasblocker/privacy/) | [GitHub](https://github.com/kkapsner/CanvasBlocker)