diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index 1b105007964..9a0a2feaf80 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -305,7 +305,6 @@ resolution=300x300,device-pixel-ratio=2 != pixel_snapping_position_a.html pixel_
== style_is_in_doc.html style_is_in_doc_ref.html
== submit_focus_a.html submit_focus_b.html
== table_auto_width.html table_auto_width_ref.html
-== table_caption_bottom_a.html table_caption_bottom_ref.html
# text_decoration_propagation_a.html text_decoration_propagation_b.html
!= text_decoration_smoke_a.html text_decoration_smoke_ref.html
!= text_decoration_underline_subpx_a.html text_decoration_underline_subpx_ref.html
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 527fe2c3766..d084ea2cb24 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -603,6 +603,18 @@
"url": "/_mozilla/css/stacking_context_rtl.html"
}
],
+ "css/table_caption_bottom_a.html": [
+ {
+ "path": "css/table_caption_bottom_a.html",
+ "references": [
+ [
+ "/_mozilla/css/table_caption_bottom_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/table_caption_bottom_a.html"
+ }
+ ],
"css/table_caption_top_a.html": [
{
"path": "css/table_caption_top_a.html",
@@ -2564,6 +2576,18 @@
"url": "/_mozilla/css/stacking_context_rtl.html"
}
],
+ "css/table_caption_bottom_a.html": [
+ {
+ "path": "css/table_caption_bottom_a.html",
+ "references": [
+ [
+ "/_mozilla/css/table_caption_bottom_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/table_caption_bottom_a.html"
+ }
+ ],
"css/table_caption_top_a.html": [
{
"path": "css/table_caption_top_a.html",
diff --git a/tests/ref/table_caption_bottom_a.html b/tests/wpt/mozilla/tests/css/table_caption_bottom_a.html
similarity index 91%
rename from tests/ref/table_caption_bottom_a.html
rename to tests/wpt/mozilla/tests/css/table_caption_bottom_a.html
index 239abb84b3c..6eb0b0c1270 100644
--- a/tests/ref/table_caption_bottom_a.html
+++ b/tests/wpt/mozilla/tests/css/table_caption_bottom_a.html
@@ -1,6 +1,7 @@
+