diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index 48d43f7cc48..283a759f2d8 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -271,7 +271,6 @@ resolution=300x300,device-pixel-ratio=2 != pixel_snapping_position_a.html pixel_
== position_relative_vertical_percentage_overflow_a.html position_relative_vertical_percentage_overflow_ref.html
== pre_ignorable_whitespace_a.html pre_ignorable_whitespace_ref.html
== pre_with_tab.html pre_with_tab_ref.html
-== pseudo_content_with_layers.html pseudo_content_with_layers_ref.html
== root_display_inline_a.html root_display_ref.html
== root_display_without_style_a.html root_display_ref.html
# text_decoration_propagation_a.html text_decoration_propagation_b.html
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 400bd0c3dcd..b8d2fb4fe5b 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -683,6 +683,18 @@
"url": "/_mozilla/css/flex_nochild.html"
}
],
+ "css/pseudo_content_with_layers.html": [
+ {
+ "path": "css/pseudo_content_with_layers.html",
+ "references": [
+ [
+ "/_mozilla/css/pseudo_content_with_layers_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/pseudo_content_with_layers.html"
+ }
+ ],
"css/pseudo_element_a.html": [
{
"path": "css/pseudo_element_a.html",
@@ -3012,6 +3024,18 @@
"url": "/_mozilla/css/flex_nochild.html"
}
],
+ "css/pseudo_content_with_layers.html": [
+ {
+ "path": "css/pseudo_content_with_layers.html",
+ "references": [
+ [
+ "/_mozilla/css/pseudo_content_with_layers_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/pseudo_content_with_layers.html"
+ }
+ ],
"css/pseudo_element_a.html": [
{
"path": "css/pseudo_element_a.html",
diff --git a/tests/ref/pseudo_content_with_layers.html b/tests/wpt/mozilla/tests/css/pseudo_content_with_layers.html
similarity index 91%
rename from tests/ref/pseudo_content_with_layers.html
rename to tests/wpt/mozilla/tests/css/pseudo_content_with_layers.html
index 930cdbca383..2238ec06a8c 100644
--- a/tests/ref/pseudo_content_with_layers.html
+++ b/tests/wpt/mozilla/tests/css/pseudo_content_with_layers.html
@@ -1,5 +1,6 @@
+