diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index 6bff3ba571c..f20c13a29e3 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -64,7 +64,6 @@ prefs:"layout.flex.enabled" == flex_row_direction.html flex_row_direction_ref.ht
 == floated_negative_margins_a.html floated_negative_margins_ref.html
 == floated_table_with_margin_a.html floated_table_with_margin_ref.html
 == focus_selector.html focus_selector_ref.html
-== font_advance.html font_advance_ref.html
 == font_color_attribute_a.html font_color_attribute_ref.html
 == font_face_attribute.html font_face_attribute_ref.html
 == font_size.html font_size_ref.html
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 9def4328afc..e3c7464016e 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -803,6 +803,18 @@
             "url": "/_mozilla/css/flex_nochild.html"
           }
         ],
+        "css/font_advance.html": [
+          {
+            "path": "css/font_advance.html",
+            "references": [
+              [
+                "/_mozilla/css/font_advance_ref.html",
+                "=="
+              ]
+            ],
+            "url": "/_mozilla/css/font_advance.html"
+          }
+        ],
         "css/font_style.html": [
           {
             "path": "css/font_style.html",
@@ -4788,6 +4800,18 @@
           "url": "/_mozilla/css/flex_nochild.html"
         }
       ],
+      "css/font_advance.html": [
+        {
+          "path": "css/font_advance.html",
+          "references": [
+            [
+              "/_mozilla/css/font_advance_ref.html",
+              "=="
+            ]
+          ],
+          "url": "/_mozilla/css/font_advance.html"
+        }
+      ],
       "css/font_style.html": [
         {
           "path": "css/font_style.html",
diff --git a/tests/ref/font_advance.html b/tests/wpt/mozilla/tests/css/font_advance.html
similarity index 70%
rename from tests/ref/font_advance.html
rename to tests/wpt/mozilla/tests/css/font_advance.html
index 91d871a656e..777ab7e54e0 100644
--- a/tests/ref/font_advance.html
+++ b/tests/wpt/mozilla/tests/css/font_advance.html
@@ -1,2 +1,3 @@
+<link rel='match' href='font_advance_ref.html'>
 <!-- Not a reftest, but a crashtest for #4614 -->
 a<div id="test" style="font-size: 100000px">Hello world</div>
diff --git a/tests/ref/font_advance_ref.html b/tests/wpt/mozilla/tests/css/font_advance_ref.html
similarity index 100%
rename from tests/ref/font_advance_ref.html
rename to tests/wpt/mozilla/tests/css/font_advance_ref.html