diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index a7e1387ee61..52e2129ff96 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -49,7 +49,6 @@ resolution=300x300,device-pixel-ratio=2 != pixel_snapping_position_a.html pixel_
# == position_fixed_simple_a.html position_fixed_simple_b.html
# == position_fixed_static_y_a.html position_fixed_static_y_b.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
!= text_overflow_a.html text_overflow_ref.html
flaky_cpu,prefs:"layout.writing-mode.enabled" == vertical-lr-blocks.html vertical-lr-blocks_ref.html
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index c5b834e8761..f5e77833b19 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -4051,6 +4051,18 @@
"url": "/_mozilla/css/text_decoration_cached.html"
}
],
+ "css/text_decoration_smoke_a.html": [
+ {
+ "path": "css/text_decoration_smoke_a.html",
+ "references": [
+ [
+ "/_mozilla/css/text_decoration_smoke_ref.html",
+ "!="
+ ]
+ ],
+ "url": "/_mozilla/css/text_decoration_smoke_a.html"
+ }
+ ],
"css/text_indent_a.html": [
{
"path": "css/text_indent_a.html",
@@ -9444,6 +9456,18 @@
"url": "/_mozilla/css/text_decoration_cached.html"
}
],
+ "css/text_decoration_smoke_a.html": [
+ {
+ "path": "css/text_decoration_smoke_a.html",
+ "references": [
+ [
+ "/_mozilla/css/text_decoration_smoke_ref.html",
+ "!="
+ ]
+ ],
+ "url": "/_mozilla/css/text_decoration_smoke_a.html"
+ }
+ ],
"css/text_indent_a.html": [
{
"path": "css/text_indent_a.html",
diff --git a/tests/ref/text_decoration_smoke_a.html b/tests/wpt/mozilla/tests/css/text_decoration_smoke_a.html
similarity index 81%
rename from tests/ref/text_decoration_smoke_a.html
rename to tests/wpt/mozilla/tests/css/text_decoration_smoke_a.html
index 443e1bd1502..ac7c814ee43 100644
--- a/tests/ref/text_decoration_smoke_a.html
+++ b/tests/wpt/mozilla/tests/css/text_decoration_smoke_a.html
@@ -2,6 +2,7 @@
+