diff --git a/4.1-Extensions.md b/4.1-Extensions.md
index 06d3533..dab3887 100644
--- a/4.1-Extensions.md
+++ b/4.1-Extensions.md
@@ -17,7 +17,7 @@ These are all, where applicable, best configured to `deny-all` and whitelist.
* [HTTPS Everywhere](https://addons.mozilla.org/firefox/addon/https-everywhere/) ✔ [Privacy](https://www.eff.org/code/privacy/policy) | [GitHub](https://github.com/EFForg/https-everywhere)
* [HTTPS by default](https://addons.mozilla.org/firefox/addon/https-by-default/) | [GitHub](https://github.com/Rob--W/https-by-default)
* changes the behavior for schemeless URLs typed in the location bar
-* [Smart Referer](https://addons.mozilla.org/firefox/addon/smart-referer/) ✔ [Privacy](https://addons.mozilla.org/de/firefox/addon/smart-referer/privacy/) | [GitLab](https://gitlab.com/smart-referer/smart-referer) | [GitHub Archive](https://github.com/meh/smart-referer)
+* [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/ghacksuserjs/ghacks-user.js/wiki/4.2.4-Header-Editor) to modify headers such as blocking ETags
* [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/firefoxaddons)