diff --git a/4.1-Extensions.md b/4.1-Extensions.md
index 2db3a83..5659b6c 100644
--- a/4.1-Extensions.md
+++ b/4.1-Extensions.md
@@ -93,6 +93,8 @@ These extensions will not mask or alter any data sent or received, but may be us
   - Redundant with [Total Cookie Protection](https://blog.mozilla.org/security/2021/02/23/total-cookie-protection/) (dFPI) or FPI
   - ❗️Sanitizing in-session is a false sense of privacy. They do nothing for IP tracking. Even Tor Browser does not sanitize in-session e.g. when you request a new circuit. A new ID requires _both_ full sanitizing _and_ a new IP. The same applies to Firefox
   - ❗️Cookie extensions can lack APIs or implementation of them to properly sanitize
+      - e.g. at the time of writing: [Cookie Auto Delete](https://addons.mozilla.org/firefox/addon/cookie-autodelete/)
+      - > As of Firefox 86, strict mode is not supported at this time due to missing APIs to handle the Total Cookie Protection
 * Anti-Fingerprinting Extensions
   - Redundant with RFP which is the [best solution](https://github.com/arkenfox/user.js/wiki/3.3-Overrides-[To-RFP-or-Not]#-summary)
      - ⭐ For non-RFP users, we recommend CanvasBlocker (see above) as your next best option