diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index a9514bc4e5c..b17fc4317c1 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -102,7 +102,6 @@ prefs:"layout.writing-mode.enabled" == iframe/size_attributes_vertical_writing_m
== img_dynamic_remove.html img_dynamic_remove_ref.html
!= img_simple.html img_simple_ref.html
!= inline_background_a.html inline_background_ref.html
-== inline_block_border_intrinsic_size_a.html inline_block_border_intrinsic_size_ref.html
== inline_block_margin_auto_a.html inline_block_margin_auto_ref.html
== inline_block_parent_width.html inline_block_parent_width_ref.html
== inline_block_parent_width_percentage.html inline_block_parent_width_ref.html
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 6346a1e765b..0fffa2fa262 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -959,6 +959,18 @@
"url": "/_mozilla/css/inline_block_border_a.html"
}
],
+ "css/inline_block_border_intrinsic_size_a.html": [
+ {
+ "path": "css/inline_block_border_intrinsic_size_a.html",
+ "references": [
+ [
+ "/_mozilla/css/inline_block_border_intrinsic_size_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/inline_block_border_intrinsic_size_a.html"
+ }
+ ],
"css/inline_block_img_a.html": [
{
"path": "css/inline_block_img_a.html",
@@ -4896,6 +4908,18 @@
"url": "/_mozilla/css/inline_block_border_a.html"
}
],
+ "css/inline_block_border_intrinsic_size_a.html": [
+ {
+ "path": "css/inline_block_border_intrinsic_size_a.html",
+ "references": [
+ [
+ "/_mozilla/css/inline_block_border_intrinsic_size_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/inline_block_border_intrinsic_size_a.html"
+ }
+ ],
"css/inline_block_img_a.html": [
{
"path": "css/inline_block_img_a.html",
diff --git a/tests/ref/inline_block_border_intrinsic_size_a.html b/tests/wpt/mozilla/tests/css/inline_block_border_intrinsic_size_a.html
similarity index 85%
rename from tests/ref/inline_block_border_intrinsic_size_a.html
rename to tests/wpt/mozilla/tests/css/inline_block_border_intrinsic_size_a.html
index 7e8a7e0be19..656b344a34b 100644
--- a/tests/ref/inline_block_border_intrinsic_size_a.html
+++ b/tests/wpt/mozilla/tests/css/inline_block_border_intrinsic_size_a.html
@@ -1,6 +1,7 @@
+