diff --git a/4.1-Extensions.md b/4.1-Extensions.md
index ff362c2..535e36a 100644
--- a/4.1-Extensions.md
+++ b/4.1-Extensions.md
@@ -13,8 +13,7 @@ This list covers privacy and security related extensions only. While we believe
* Required reading: [1] [AMO description](https://addons.mozilla.org/firefox/addon/temporary-containers/) [2] [Article](https://medium.com/@stoically/enhance-your-privacy-in-firefox-with-temporary-containers-33925cd6cd21) [3] [TC's Wiki](https://github.com/stoically/temporary-containers/wiki)
* [Smart Referer](https://addons.mozilla.org/firefox/addon/smart-referer/) ✔ [Privacy](https://addons.mozilla.org/firefox/addon/smart-referer/privacy/) | [GitLab](https://gitlab.com/smart-referer/smart-referer) | [GitHub Archive](https://github.com/meh/smart-referer)
* [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 headers such as blocking ETags
- * [ETag Stoppa](https://addons.mozilla.org/firefox/addon/etag-stoppa/) | [GitHub](https://github.com/claustromaniac/ETag-Stoppa) Use this if you don't want a full-on header extension
+ * 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
* [Neat URL](https://addons.mozilla.org/firefox/addon/neat-url/) ✔ [Privacy](https://addons.mozilla.org/firefox/addon/neat-url/privacy/) | [GitHub](https://github.com/Smile4ever/Neat-URL)
* [Skip Redirect](https://addons.mozilla.org/firefox/addon/skip-redirect/) | [GitHub](https://github.com/sblask/webextension-skip-redirect)
* [ClearURLs](https://addons.mozilla.org/firefox/addon/clearurls/) ✔ Privacy (stated on AMO) | [GitLab](https://gitlab.com/KevinRoebert/ClearUrls) | [GitHub Archive](https://github.com/KevinRoebert/ClearUrls)