diff --git a/css/css-overflow/parsing/parsing/META.yml b/css/css-overflow/parsing/parsing/META.yml
index 818c1e8ac..6a4819555 100644
--- a/css/css-overflow/parsing/parsing/META.yml
+++ b/css/css-overflow/parsing/parsing/META.yml
@@ -98,3 +98,10 @@ links:
   - subtest: e.style['scroll-marker-group'] = "after" should set the property value
     test: scroll-markers-valid.html
   url: https://bugzilla.mozilla.org/show_bug.cgi?id=1937847
+- product: firefox
+  results:
+  - subtest: '"::scroll-button( up)" should be a valid selector'
+    test: scroll-buttons-valid.html
+  - subtest: '"::scroll-button(up )" should be a valid selector'
+    test: scroll-buttons-valid.html
+  url: https://bugzilla.mozilla.org/show_bug.cgi?id=1943055