diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index e9a3644d42d..34746b72d20 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -38,7 +38,6 @@ prefs:"layout.writing-mode.enabled" == iframe/size_attributes_vertical_writing_m
flaky_cpu == linebreak_simple_a.html linebreak_simple_b.html
# Fails intermittently (#3636)
# == link_style_dynamic_addition.html link_style_dynamic_addition_ref.html
-!= list_style_type_a.html list_style_type_ref.html
== margin_a.html margin_b.html
== marker_block_direction_placement_a.html marker_block_direction_placement_ref.html
!= noteq_attr_exists_selector.html attr_exists_selector_ref.html
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 99f95aca010..d09f8524c55 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -2535,6 +2535,18 @@
"url": "/_mozilla/css/list_style_position_a.html"
}
],
+ "css/list_style_type_a.html": [
+ {
+ "path": "css/list_style_type_a.html",
+ "references": [
+ [
+ "/_mozilla/css/list_style_type_ref.html",
+ "!="
+ ]
+ ],
+ "url": "/_mozilla/css/list_style_type_a.html"
+ }
+ ],
"css/many_brs_a.html": [
{
"path": "css/many_brs_a.html",
@@ -7756,6 +7768,18 @@
"url": "/_mozilla/css/list_style_position_a.html"
}
],
+ "css/list_style_type_a.html": [
+ {
+ "path": "css/list_style_type_a.html",
+ "references": [
+ [
+ "/_mozilla/css/list_style_type_ref.html",
+ "!="
+ ]
+ ],
+ "url": "/_mozilla/css/list_style_type_a.html"
+ }
+ ],
"css/many_brs_a.html": [
{
"path": "css/many_brs_a.html",
diff --git a/tests/ref/list_style_type_a.html b/tests/wpt/mozilla/tests/css/list_style_type_a.html
similarity index 85%
rename from tests/ref/list_style_type_a.html
rename to tests/wpt/mozilla/tests/css/list_style_type_a.html
index f0bad6fde52..1d6a61098d7 100644
--- a/tests/ref/list_style_type_a.html
+++ b/tests/wpt/mozilla/tests/css/list_style_type_a.html
@@ -5,6 +5,7 @@
-->
+