diff --git a/user.js b/user.js
index a603f85..9be1c46 100644
--- a/user.js
+++ b/user.js
@@ -466,6 +466,7 @@ user_pref("browser.sessionhistory.max_entries", 10);
 /* 0805: disable CSS querying page history - CSS history leak
  * [NOTE] This has NEVER been fully "resolved": in Mozilla/docs it is stated it's
  * only in 'certain circumstances', also see latest comments in [2]
+ * [TEST] https://earthlng.github.io/testpages/visited_links.html
  * [1] https://dbaron.org/mozilla/visited-privacy
  * [2] https://bugzilla.mozilla.org/147777
  * [3] https://developer.mozilla.org/docs/Web/CSS/Privacy_and_the_:visited_selector ***/