diff --git a/css/css-pseudo/highlight-cascade/META.yml b/css/css-pseudo/highlight-cascade/META.yml
index 793530bba..6b648e4b6 100644
--- a/css/css-pseudo/highlight-cascade/META.yml
+++ b/css/css-pseudo/highlight-cascade/META.yml
@@ -255,3 +255,8 @@ links:
   - subtest: div::selection does not use its own custom property
     test: highlight-cascade-009.html
   url: https://bugzilla.mozilla.org/show_bug.cgi?id=1906033
+- product: firefox
+  results:
+  - subtest: the custom property receives its initial value from a deferred registration
+    test: highlight-cascade-010.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1936342