diff --git a/4.1.3-uBlock-Origin.md b/4.1.3-uBlock-Origin.md
index 22f6f80..79d2bb5 100644
--- a/4.1.3-uBlock-Origin.md
+++ b/4.1.3-uBlock-Origin.md
@@ -1,7 +1,10 @@
+- [uBlock Origin](https://addons.thunderbird.net/thunderbird/addon/ublock-origin/) (ATN)
 - [uBlock Origin](https://addons.mozilla.org/addon/ublock-origin/) (AMO)
 - [gorhill/uBlock](https://github.com/gorhill/uBlock) (source)
 
 Apparently there is [experimental Thunderbird 65+ support](https://github.com/gorhill/uBlock/commit/305cd4db1c8fb93a5d032fb3a09ededd9bbdc240).  
 As of Thunderbird 68+, [there are still some issues](https://github.com/uBlockOrigin/uBlock-issues/issues/825).
 
-So this is something to keep an eye on. Also see [4.2.2 uBlock Origin](https://github.com/arkenfox/user.js/wiki/4.2.2-uBlock-Origin) from the [`arkenfox user.js`](https://github.com/arkenfox/user.js) project.
+So this is something to keep an eye on. Also see [4.1 Extensions](https://github.com/arkenfox/user.js/wiki/4.1-Extensions#-recommended) from the [`arkenfox user.js`](https://github.com/arkenfox/user.js) project.
+
+uBlock is available for 91+ on ATN (addons.thunderbird.net), but it **only** addresses RSS feeds (not emails).