diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index ee90a1be5d4..0546548d847 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -3564,6 +3564,30 @@
             "url": "/_mozilla/css/mix_blend_mode_a.html"
           }
         ],
+        "css/multiple_backgrounds.html": [
+          {
+            "path": "css/multiple_backgrounds.html",
+            "references": [
+              [
+                "/_mozilla/css/multiple_backgrounds_ref.html",
+                "=="
+              ]
+            ],
+            "url": "/_mozilla/css/multiple_backgrounds.html"
+          }
+        ],
+        "css/multiple_backgrounds_ref.html": [
+          {
+            "path": "css/multiple_backgrounds_ref.html",
+            "references": [
+              [
+                "/_mozilla/css/multiple_backgrounds_ref.html",
+                "=="
+              ]
+            ],
+            "url": "/_mozilla/css/multiple_backgrounds_ref.html"
+          }
+        ],
         "css/multiple_css_class_a.html": [
           {
             "path": "css/multiple_css_class_a.html",
@@ -12832,6 +12856,30 @@
           "url": "/_mozilla/css/mix_blend_mode_a.html"
         }
       ],
+      "css/multiple_backgrounds.html": [
+        {
+          "path": "css/multiple_backgrounds.html",
+          "references": [
+            [
+              "/_mozilla/css/multiple_backgrounds_ref.html",
+              "=="
+            ]
+          ],
+          "url": "/_mozilla/css/multiple_backgrounds.html"
+        }
+      ],
+      "css/multiple_backgrounds_ref.html": [
+        {
+          "path": "css/multiple_backgrounds_ref.html",
+          "references": [
+            [
+              "/_mozilla/css/multiple_backgrounds_ref.html",
+              "=="
+            ]
+          ],
+          "url": "/_mozilla/css/multiple_backgrounds_ref.html"
+        }
+      ],
       "css/multiple_css_class_a.html": [
         {
           "path": "css/multiple_css_class_a.html",
diff --git a/tests/wpt/mozilla/tests/css/bubbles.png b/tests/wpt/mozilla/tests/css/bubbles.png
new file mode 100644
index 00000000000..dbd4db86005
Binary files /dev/null and b/tests/wpt/mozilla/tests/css/bubbles.png differ
diff --git a/tests/wpt/mozilla/tests/css/multiple_backgrounds.html b/tests/wpt/mozilla/tests/css/multiple_backgrounds.html
new file mode 100644
index 00000000000..29922d60454
--- /dev/null
+++ b/tests/wpt/mozilla/tests/css/multiple_backgrounds.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <title></title>
+    <link rel="match" href="multiple_backgrounds_ref.html">
+    <style type="text/css">
+        /* Example from
+           https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Background_and_Borders/Using_CSS_multiple_backgrounds
+           (Public domain)
+
+           bubbles.png is from the above MDN page, by Mozilla contributors,
+           licensed under CC-BY-SA 2.5
+
+           Rust logo from https://www.rust-lang.org/logos/rust-logo-256x256.png,
+           licensed as CC-BY-SA 4.0, owned by Mozilla
+        */
+        #multibg {
+            width: 700px;
+            height: 400px;
+            background: url(rust-logo-256x256.png) no-repeat bottom right / 256px 256px,
+                        url(bubbles.png) no-repeat left / 700px 100%,
+                        linear-gradient(to right, rgba(30, 75, 115, 1), rgba(255, 255, 255, 0)) no-repeat;
+        }
+    </style>
+</head>
+<body>
+    <div id="multibg">
+    </div>
+</body>
+</html>
diff --git a/tests/wpt/mozilla/tests/css/multiple_backgrounds_ref.html b/tests/wpt/mozilla/tests/css/multiple_backgrounds_ref.html
new file mode 100644
index 00000000000..d3af6fe5881
--- /dev/null
+++ b/tests/wpt/mozilla/tests/css/multiple_backgrounds_ref.html
@@ -0,0 +1,47 @@
+<!doctype html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <title></title>
+    <link rel="match" href="multiple_backgrounds_ref.html">
+    <style type="text/css">
+        /* Example from
+           https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Background_and_Borders/Using_CSS_multiple_backgrounds
+           (Public domain)
+
+           bubbles.png is from the above MDN page, by Mozilla contributors,
+           licensed under CC-BY-SA 2.5
+
+           Rust logo from https://www.rust-lang.org/logos/rust-logo-256x256.png,
+           licensed as CC-BY-SA 4.0, owned by Mozilla
+        */
+        #gradientbg {
+            width: 700px;
+            height: 400px;
+            background: linear-gradient(to right, rgba(30, 75, 115, 1), rgba(255, 255, 255, 0)) no-repeat;
+        }
+        #bubblesbg {
+            width: 100%;
+            height: 100%;
+            background: url(bubbles.png) no-repeat left / 700px 100%;
+            position: relative;
+        }
+        #rustbg {
+            width: 256px;
+            height: 256px;
+            background: url(rust-logo-256x256.png) no-repeat left / 256px 256px;
+            position: absolute;
+            bottom: 0;
+            right: 0;
+        }
+    </style>
+</head>
+<body>
+    <div id="gradientbg">
+    <div id="bubblesbg">
+        <div id="rustbg">
+        </div>
+    </div>
+    </div>
+</body>
+</html>
diff --git a/tests/wpt/mozilla/tests/css/rust-logo-256x256.png b/tests/wpt/mozilla/tests/css/rust-logo-256x256.png
new file mode 100644
index 00000000000..63506dd85ef
Binary files /dev/null and b/tests/wpt/mozilla/tests/css/rust-logo-256x256.png differ
