diff --git a/4.1-Extensions.md b/4.1-Extensions.md
index 0f238ce..516fba2 100644
--- a/4.1-Extensions.md
+++ b/4.1-Extensions.md
@@ -5,6 +5,7 @@ This list covers privacy and security related extensions only. While we believe
 ### :small_orange_diamond: Extensions
 
 * [uBlock Origin](https://addons.mozilla.org/firefox/addon/ublock-origin/) <sup>✔ [Privacy](https://github.com/gorhill/uBlock/wiki/Privacy-policy)</sup> | [GitHub](https://github.com/gorhill/uBlock)
+   * ⭐ Setup your [blocking mode](https://github.com/gorhill/uBlock/wiki/Blocking-mode)
    * ⭐ Import [Actually Legitimate URL Shortener Tool](https://raw.githubusercontent.com/DandelionSprout/adfilt/master/LegitimateURLShortener.txt) | [GitHub](https://github.com/DandelionSprout/adfilt/blob/master/LegitimateURLShortener.txt)
    * ⭐ Enable `AdGuard URL Tracking Protection`
 * [Smart Referer](https://addons.mozilla.org/firefox/addon/smart-referer/) <sup>✔ [Privacy](https://addons.mozilla.org/firefox/addon/smart-referer/privacy/)</sup> | [GitLab](https://gitlab.com/smart-referer/smart-referer) | [GitHub <sup>Archive</sup>](https://github.com/meh/smart-referer)