diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 98dbd60fcbb..0cb9a9d9585 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -6462,6 +6462,18 @@
             "url": "/_mozilla/mozilla/iframe/resize_after_load.html"
           }
         ],
+        "mozilla/reparse_style_elements.html": [
+          {
+            "path": "mozilla/reparse_style_elements.html",
+            "references": [
+              [
+                "/_mozilla/mozilla/reparse_style_elements_ref.html",
+                "=="
+              ]
+            ],
+            "url": "/_mozilla/mozilla/reparse_style_elements.html"
+          }
+        ],
         "mozilla/restyle-out-of-document.html": [
           {
             "path": "mozilla/restyle-out-of-document.html",
@@ -21840,6 +21852,18 @@
           "url": "/_mozilla/mozilla/iframe/resize_after_load.html"
         }
       ],
+      "mozilla/reparse_style_elements.html": [
+        {
+          "path": "mozilla/reparse_style_elements.html",
+          "references": [
+            [
+              "/_mozilla/mozilla/reparse_style_elements_ref.html",
+              "=="
+            ]
+          ],
+          "url": "/_mozilla/mozilla/reparse_style_elements.html"
+        }
+      ],
       "mozilla/restyle-out-of-document.html": [
         {
           "path": "mozilla/restyle-out-of-document.html",
diff --git a/tests/wpt/mozilla/tests/mozilla/reparse_style_elements.html b/tests/wpt/mozilla/tests/mozilla/reparse_style_elements.html
new file mode 100644
index 00000000000..e54f5a28d13
--- /dev/null
+++ b/tests/wpt/mozilla/tests/mozilla/reparse_style_elements.html
@@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>Style elements should be reparsed on change</title>
+<link rel="match" href="reparse_style_elements_ref.html">
+<body>
+    <style>
+        body {
+            background-color: red;
+        }
+    </style>
+
+    This text should be green and the background should not be red.
+
+    <script>
+        var s = document.querySelector('body > style');
+        s.textContent = 'body { color: green; }';
+    </script>
+</body>
diff --git a/tests/wpt/mozilla/tests/mozilla/reparse_style_elements_ref.html b/tests/wpt/mozilla/tests/mozilla/reparse_style_elements_ref.html
new file mode 100644
index 00000000000..e9fd0816b9b
--- /dev/null
+++ b/tests/wpt/mozilla/tests/mozilla/reparse_style_elements_ref.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<meta charset="utf-8">
+<body>
+    <style>
+        body {
+            color: green;
+        }
+    </style>
+
+    This text should be green and the background should not be red.
+</body>
