diff --git a/index.html b/index.html
index c5468b7a..10bda3b1 100644
--- a/index.html
+++ b/index.html
@@ -953,7 +953,7 @@
 		<ol>
 			<li>privacy.firstparty.isolate = true</li>
 			<ul>
-				<li>A result of the <a href="https://wiki.mozilla.org/Security/Tor_Uplift">Tor Uplift</a> effort, this preference isolates all browser identifier sources (e.g. cookies) to the first party domain, with the goal of preventing tracking across different domains.</li>
+				<li>A result of the <a href="https://wiki.mozilla.org/Security/Tor_Uplift">Tor Uplift</a> effort, this preference isolates all browser identifier sources (e.g. cookies) to the first party domain, with the goal of preventing tracking across different domains. (Don't do this if you are using the Firefox Addon "Cookie AutoDelete".</li>
 			</ul>
 
 			<li>privacy.resistFingerprinting = true</li>