diff --git a/user.js b/user.js
index 7cdf263..96c3b3c 100644
--- a/user.js
+++ b/user.js
@@ -932,8 +932,9 @@ user_pref("media.getusermedia.audiocapture.enabled", false);
    // user_pref("media.autoplay.default", 5);
 /* 2031: disable autoplay of HTML5 media if you interacted with the site [FF78+]
  * 0=sticky (default), 1=transient, 2=user
+ * Firefox's Autoplay Policy Documentation [PDF] is linked below via SUMO
  * [NOTE] If you have trouble with some video sites, then add an exception (see 2030)
- * [1] https://html.spec.whatwg.org/multipage/interaction.html#sticky-activation ***/
+ * [1] https://support.mozilla.org/questions/1293231 ***/
 user_pref("media.autoplay.blocking_policy", 2);
 
 /*** [SECTION 2200]: WINDOW MEDDLING & LEAKS / POPUPS ***/