diff --git a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
index 76b398963ae..a9e46713244 100644
--- a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -7,7 +7,7 @@
     expected: FAIL
 
   [Opening a blob URL in a new window immediately before revoking it works.]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Opening a blob URL in a noopener about:blank window immediately before revoking it works.]
     expected: FAIL
diff --git a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
index 3a3d15b8406..3b874fc1748 100644
--- a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
@@ -14,9 +14,6 @@
   [Revoke blob URL after creating Request, will fetch]
     expected: FAIL
 
-  [Revoke blob URL after calling fetch, fetch should succeed]
-    expected: FAIL
-
 
 [url-with-fetch.any.html]
   [Untitled]
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 06227079f93..32d90fb6f4b 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -179605,6 +179605,18 @@
      {}
     ]
    ],
+   "css/filter-effects/backdrop-filter-containing-block.html": [
+    [
+     "css/filter-effects/backdrop-filter-containing-block.html",
+     [
+      [
+       "/css/filter-effects/backdrop-filter-containing-block-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/filter-effects/backdrop-filter-edge-clipping.html": [
     [
      "css/filter-effects/backdrop-filter-edge-clipping.html",
@@ -205265,6 +205277,18 @@
      {}
     ]
    ],
+   "svg/extensibility/foreignObject/filter-repaint.html": [
+    [
+     "svg/extensibility/foreignObject/filter-repaint.html",
+     [
+      [
+       "/svg/extensibility/foreignObject/filter-repaint-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "svg/extensibility/foreignObject/foreign-object-margin-collapsing.html": [
     [
      "svg/extensibility/foreignObject/foreign-object-margin-collapsing.html",
@@ -227707,6 +227731,12 @@
    "console/META.yml": [
     []
    ],
+   "contacts/resources/helpers.js": [
+    []
+   ],
+   "contacts/resources/non-main-frame-select.html": [
+    []
+   ],
    "content-security-policy/META.yml": [
     []
    ],
@@ -260404,6 +260434,9 @@
    "css/filter-effects/backdrop-filter-clipped-ref.html": [
     []
    ],
+   "css/filter-effects/backdrop-filter-containing-block-ref.html": [
+    []
+   ],
    "css/filter-effects/backdrop-filter-edge-pixels-ref.html": [
     []
    ],
@@ -266449,6 +266482,9 @@
    "fetch/sec-metadata/resources/sharedWorker.js": [
     []
    ],
+   "fetch/sec-metadata/resources/unload-with-beacon.html": [
+    []
+   ],
    "fetch/sec-metadata/resources/xslt-test.sub.xml": [
     []
    ],
@@ -278329,6 +278365,9 @@
    "resources/chromium/big_buffer.mojom.js.headers": [
     []
    ],
+   "resources/chromium/contacts_manager_mock.js": [
+    []
+   ],
    "resources/chromium/device.mojom.js": [
     []
    ],
@@ -280936,6 +280975,9 @@
    "svg/extensibility/foreignObject/compositing-backface-visibility-ref.html": [
     []
    ],
+   "svg/extensibility/foreignObject/filter-repaint-ref.html": [
+    []
+   ],
    "svg/extensibility/foreignObject/foreign-object-paints-before-rect-ref.html": [
     []
    ],
@@ -306974,6 +307016,27 @@
      }
     ]
    ],
+   "contacts/contacts-select.https.window.js": [
+    [
+     "contacts/contacts-select.https.window.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "/resources/testdriver.js"
+       ],
+       [
+        "script",
+        "/resources/testdriver-vendor.js"
+       ],
+       [
+        "script",
+        "resources/helpers.js"
+       ]
+      ]
+     }
+    ]
+   ],
    "content-security-policy/base-uri/base-uri-allow.sub.html": [
     [
      "content-security-policy/base-uri/base-uri-allow.sub.html",
@@ -319491,9 +319554,15 @@
      {}
     ]
    ],
-   "css/css-sizing/inheritance.html": [
+   "css/css-sizing/inheritance-001.html": [
     [
-     "css/css-sizing/inheritance.html",
+     "css/css-sizing/inheritance-001.html",
+     {}
+    ]
+   ],
+   "css/css-sizing/inheritance-002.html": [
+    [
+     "css/css-sizing/inheritance-002.html",
      {}
     ]
    ],
@@ -328597,6 +328666,12 @@
      {}
     ]
    ],
+   "custom-elements/form-associated/ElementInternals-accessibility.html": [
+    [
+     "custom-elements/form-associated/ElementInternals-accessibility.html",
+     {}
+    ]
+   ],
    "custom-elements/form-associated/ElementInternals-labels.html": [
     [
      "custom-elements/form-associated/ElementInternals-labels.html",
@@ -346038,6 +346113,14 @@
      {}
     ]
    ],
+   "fetch/sec-metadata/unload.tentative.https.sub.html": [
+    [
+     "fetch/sec-metadata/unload.tentative.https.sub.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
    "fetch/sec-metadata/window-open.tentative.https.sub.html": [
     [
      "fetch/sec-metadata/window-open.tentative.https.sub.html",
@@ -391237,6 +391320,23 @@
      {}
     ]
    ],
+   "service-workers/service-worker/ServiceWorkerGlobalScope/fetch-on-the-right-interface.https.any.js": [
+    [
+     "service-workers/service-worker/ServiceWorkerGlobalScope/fetch-on-the-right-interface.https.any.serviceworker.html",
+     {
+      "script_metadata": [
+       [
+        "title",
+        "fetch method on the right interface"
+       ],
+       [
+        "global",
+        "!default,serviceworker"
+       ]
+      ]
+     }
+    ]
+   ],
    "service-workers/service-worker/ServiceWorkerGlobalScope/isSecureContext.https.html": [
     [
      "service-workers/service-worker/ServiceWorkerGlobalScope/isSecureContext.https.html",
@@ -469277,6 +469377,18 @@
    "1e7ba76ecddca2ad707784a7ff6edfc270428c26",
    "testharness"
   ],
+  "contacts/contacts-select.https.window.js": [
+   "8d1fdfbfdff539e7dd17da4b0e28ef01ae47a2d5",
+   "testharness"
+  ],
+  "contacts/resources/helpers.js": [
+   "88b2f1656ee7203a6f88ba2c747e2ba192a8335e",
+   "support"
+  ],
+  "contacts/resources/non-main-frame-select.html": [
+   "c64ecd067c82d050f989f1cbe005fe0b33bb9e96",
+   "support"
+  ],
   "content-security-policy/META.yml": [
    "ee8f1ea7e07b94711ddc65e43a6c32dbc5983612",
    "support"
@@ -472290,7 +472402,7 @@
    "support"
   ],
   "cookie-store/serviceworker_cookieStore_arguments.tentative.https.html": [
-   "06c950149751ab6e264c3bd12c826d8a60b9baf6",
+   "7d006926dac7883deb5e92b01bcc103ab3e1ea83",
    "testharness"
   ],
   "cookie-store/serviceworker_cookieStore_basic.js": [
@@ -472298,7 +472410,7 @@
    "support"
   ],
   "cookie-store/serviceworker_cookieStore_basic.tentative.https.html": [
-   "d4385d64ea993a7ecd8e92da4b722b7951134c30",
+   "379a8d764216ea7479c0df44f7e8dd1b87f149ab",
    "testharness"
   ],
   "cookie-store/serviceworker_cookieStore_cross_origin.js": [
@@ -472314,7 +472426,7 @@
    "support"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions.tentative.https.html": [
-   "2f26094aa2e3de355fa5f5778f4ede1c34b59559",
+   "375bce622c348d831c968ae63b90b44ae98de5c2",
    "testharness"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions_basic.js": [
@@ -472322,7 +472434,7 @@
    "support"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions_basic.tentative.https.html": [
-   "525c3b3c5c15007b282008eff8cd541e193764b6",
+   "0353bc2c2096f72450ad6f7b6aad5439e9bd0b20",
    "testharness"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions_empty.js": [
@@ -472330,7 +472442,7 @@
    "support"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions_empty.tentative.https.html": [
-   "38690fe3c72b58c7ed89d263990a2d0a2a1aa16f",
+   "38ec4048f1944c3f6bfe904592ee0646e28979f2",
    "testharness"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions_eventhandler_attribute.js": [
@@ -558794,7 +558906,7 @@
    "support"
   ],
   "css/css-inline/inheritance.html": [
-   "f4c93b5b2531e0c4b32ed99a34ec71abe33c6cd9",
+   "7728f67e159eabbcb9dcc87d1a1db1d14b370cb3",
    "testharness"
   ],
   "css/css-inline/inline-crash-chrome-001.html": [
@@ -569753,8 +569865,12 @@
    "5b1713975eb21e96a558933f81412a7bb0007d19",
    "reftest"
   ],
-  "css/css-sizing/inheritance.html": [
-   "367ad0201daa5a307f8e87432c49f9719fa80191",
+  "css/css-sizing/inheritance-001.html": [
+   "2516288e48685cc22a5b7ca4051d3c605671ea79",
+   "testharness"
+  ],
+  "css/css-sizing/inheritance-002.html": [
+   "2af768b2c49fa973db7f5871e21f9f9c6442f81a",
    "testharness"
   ],
   "css/css-sizing/intrinsic-percent-non-replaced-001-ref.html": [
@@ -598525,6 +598641,14 @@
    "bc25b25944f47d6f053580939752803f0b929c99",
    "reftest"
   ],
+  "css/filter-effects/backdrop-filter-containing-block-ref.html": [
+   "f429dd9a3351cc5580a312549e02a2fbe8db2ccc",
+   "support"
+  ],
+  "css/filter-effects/backdrop-filter-containing-block.html": [
+   "7300d7da86988ee92137ff35ef8b027f96f061c4",
+   "reftest"
+  ],
   "css/filter-effects/backdrop-filter-edge-clipping.html": [
    "5d09c414497de3d1d34bf2a6032c94c87a9bdb82",
    "reftest"
@@ -611717,6 +611841,10 @@
    "0d8a5ffc8c35016ef33dedc73fdd0b2c1c1fef59",
    "testharness"
   ],
+  "custom-elements/form-associated/ElementInternals-accessibility.html": [
+   "f5d96643ba23e6549d854649912626668f6118a1",
+   "testharness"
+  ],
   "custom-elements/form-associated/ElementInternals-labels.html": [
    "94e0a0457ef35bbf3de7e2cff09650a5b481b5de",
    "testharness"
@@ -619777,6 +619905,10 @@
    "5eb89cb4f68a098154cf3605f53318af2f5e56f1",
    "support"
   ],
+  "fetch/sec-metadata/resources/unload-with-beacon.html": [
+   "b00c9a5776a45ac09a1c8e85b763c6be572fa99f",
+   "support"
+  ],
   "fetch/sec-metadata/resources/xslt-test.sub.xml": [
    "2d4dff5fc3efff235827cc8024a87710c1377972",
    "support"
@@ -619809,6 +619941,10 @@
    "ff0e842d5118cba40b73f09e29cf98be0bcabb12",
    "testharness"
   ],
+  "fetch/sec-metadata/unload.tentative.https.sub.html": [
+   "89ebc050328c03c47db866ca8d6858bc1909b3fa",
+   "testharness"
+  ],
   "fetch/sec-metadata/window-open.tentative.https.sub.html": [
    "df13d55cf1ed6f206c9db7f681f56a3f0f834ef3",
    "testharness"
@@ -641730,15 +641866,15 @@
    "support"
   ],
   "interfaces/accelerometer.idl": [
-   "3705d4ba0ec93e23254374bd9b8e60dfb2cf0a08",
+   "35b09b8d521640b9b4519d665247a3c48d649386",
    "support"
   ],
   "interfaces/ambient-light.idl": [
-   "4e44c082b0709989870e7ed52e14cc77bfb5d6f2",
+   "ce335161a2570fa9f2ab8051c75c0ab71aa2df76",
    "support"
   ],
   "interfaces/animation-worklet.idl": [
-   "615a21c76fd1f59910ba5867d4de097e6ecd917e",
+   "02deca73a3a3378c9906776d547a37b7c31e0fb5",
    "support"
   ],
   "interfaces/appmanifest.idl": [
@@ -641770,7 +641906,7 @@
    "support"
   ],
   "interfaces/console.idl": [
-   "53130711a1173f0517987f176bafa157a7a1f1c0",
+   "3cd3c06b54b022c61857a6a29e8e97bf4fa9b47b",
    "support"
   ],
   "interfaces/cookie-store.idl": [
@@ -641862,7 +641998,7 @@
    "support"
   ],
   "interfaces/dom.idl": [
-   "1788faae5207bb7a21b23771bf2b0e978ea49a69",
+   "9da68c4b7f82c5fc1cea6076884cfd00c4e36e6c",
    "support"
   ],
   "interfaces/element-timing.idl": [
@@ -641870,7 +642006,7 @@
    "support"
   ],
   "interfaces/encoding.idl": [
-   "b3086b8588cdfec129a4c038c074021cacff83c5",
+   "c89cad4f9a154c467224e3becbd8b12fcb8a1f23",
    "support"
   ],
   "interfaces/encrypted-media.idl": [
@@ -642202,11 +642338,11 @@
    "support"
   ],
   "interfaces/web-nfc.idl": [
-   "d5fe1c085a2e3a127211c48cca97feb2410349a9",
+   "769eb7dd2f514d8c3e26b355b851588740ee63ee",
    "support"
   ],
   "interfaces/web-share.idl": [
-   "ae1f3f8580c0ff038ebe798bd66437ca3eb3fefc",
+   "f433f2314becd82e7446cc00c96108d1f0efe681",
    "support"
   ],
   "interfaces/webaudio.idl": [
@@ -666517,6 +666653,10 @@
    "6c61a34a4ec2e75096db0eb9f7748b142f0db7bb",
    "support"
   ],
+  "resources/chromium/contacts_manager_mock.js": [
+   "618968ec18da930ad1d3180adb68f05064bb1807",
+   "support"
+  ],
   "resources/chromium/device.mojom.js": [
    "6488cbc69c29170d9441d2210da27a464f67d445",
    "support"
@@ -668445,6 +668585,10 @@
    "89efd7a4a615c1a3ef35b045690fa40b67fb5393",
    "testharness"
   ],
+  "service-workers/service-worker/ServiceWorkerGlobalScope/fetch-on-the-right-interface.https.any.js": [
+   "9a9c8198057e3b98f5b278fcd4778a71a6211759",
+   "testharness"
+  ],
   "service-workers/service-worker/ServiceWorkerGlobalScope/isSecureContext.https.html": [
    "399820dd2c313b5023f63ea7846cc1f39fcbb1d6",
    "testharness"
@@ -673057,6 +673201,14 @@
    "da0728c96b5d0eb81435efad329bdcc3ee4dfb26",
    "testharness"
   ],
+  "svg/extensibility/foreignObject/filter-repaint-ref.html": [
+   "07563a617aa00b6561309b4bff5104b4d4d398e6",
+   "support"
+  ],
+  "svg/extensibility/foreignObject/filter-repaint.html": [
+   "0388977841e9cef08d8784f2aaf463049245ea20",
+   "reftest"
+  ],
   "svg/extensibility/foreignObject/foreign-object-circular-filter-reference-crash.html": [
    "162999402ac96dfc966702c554b33b11cf8a1054",
    "testharness"
@@ -682118,7 +682270,7 @@
    "support"
   ],
   "tools/wptrunner/requirements_firefox.txt": [
-   "9d7520dd01f29936cc7e232c2e08b1d5d6f6467a",
+   "78e53e60d94e3267f7f91b0cf6f2f65b6a35fcdc",
    "support"
   ],
   "tools/wptrunner/requirements_ie.txt": [
@@ -682306,7 +682458,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/browsers/firefox.py": [
-   "13739e5103ea0452cc9b6bbda784ebc811027b53",
+   "290fcff5ab22bd5ca19cedb4d3f38f5b8197768f",
    "support"
   ],
   "tools/wptrunner/wptrunner/browsers/firefox_android.py": [
@@ -686130,7 +686282,7 @@
    "support"
   ],
   "web-share/META.yml": [
-   "e054ccc8ec34058cc749a04cb3f06c0a72368f76",
+   "d2eccca6f424e93cc463fafc5a3b16e5a7ecc565",
    "support"
   ],
   "web-share/canShare-files.https.html": [
@@ -686146,7 +686298,7 @@
    "testharness"
   ],
   "web-share/idlharness.https.window.js": [
-   "cbaf9d72c5c11d9b75cd4a36aa0cf45bc0db35aa",
+   "1520387caf133dc43c5f036bbf24a99ef73a7f3c",
    "testharness"
   ],
   "web-share/resources/manual-helper.js": [
@@ -688286,7 +688438,7 @@
    "support"
   ],
   "webdriver/tests/switch_to_window/alerts.py": [
-   "e3a3342449912dafafaac1bec7bf90f98b29c44c",
+   "8824138c2d25c07232847062c4853d73075eb94e",
    "wdspec"
   ],
   "webdriver/tests/switch_to_window/switch.py": [
@@ -694042,11 +694194,11 @@
    "testharness"
   ],
   "webxr/xrInputSource_gamepad_disconnect.https.html": [
-   "9ec349adeb979975569961382fe47f4c889837dc",
+   "66faf8699640fe3cef81a84d1f290988c35c3e14",
    "testharness"
   ],
   "webxr/xrInputSource_gamepad_input_registered.https.html": [
-   "9213657a367bb0dd8872ff10120d705b08c0f6e6",
+   "cb1ce7780b42eec33f6732efad8619755e899e06",
    "testharness"
   ],
   "webxr/xrInputSource_profiles.https.html": [
diff --git a/tests/wpt/metadata/css/cssom-view/scroll-behavior-smooth.html.ini b/tests/wpt/metadata/css/cssom-view/scroll-behavior-smooth.html.ini
index ee754ce4aa3..e1a609649d6 100644
--- a/tests/wpt/metadata/css/cssom-view/scroll-behavior-smooth.html.ini
+++ b/tests/wpt/metadata/css/cssom-view/scroll-behavior-smooth.html.ini
@@ -3,9 +3,3 @@
   [scroll-behavior: smooth on DIV element]
     expected: FAIL
 
-  [Smooth scrolling while doing history navigation.]
-    expected: FAIL
-
-  [Instant scrolling while doing history navigation.]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/filter-effects/backdrop-filter-containing-block.html.ini b/tests/wpt/metadata/css/filter-effects/backdrop-filter-containing-block.html.ini
new file mode 100644
index 00000000000..8a185a72283
--- /dev/null
+++ b/tests/wpt/metadata/css/filter-effects/backdrop-filter-containing-block.html.ini
@@ -0,0 +1,2 @@
+[backdrop-filter-containing-block.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/custom-elements/form-associated/ElementInternals-accessibility.html.ini b/tests/wpt/metadata/custom-elements/form-associated/ElementInternals-accessibility.html.ini
new file mode 100644
index 00000000000..7a345843157
--- /dev/null
+++ b/tests/wpt/metadata/custom-elements/form-associated/ElementInternals-accessibility.html.ini
@@ -0,0 +1,4 @@
+[ElementInternals-accessibility.html]
+  [ElementInternals-accessibility]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index 148d725b0fb..f7879936446 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -318,9 +318,15 @@
   [<iframe>: combined response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" text/plain]
+  [<iframe>: combined response Content-Type: text/html;" text/plain]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
+  [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/script.window.js.ini b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
index d2df9b78483..c7413d589dc 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -56,3 +56,9 @@
   [separate text/javascript x/x]
     expected: FAIL
 
+  [separate text/javascript;charset=windows-1252 error text/javascript]
+    expected: FAIL
+
+  [separate text/javascript;charset=windows-1252  text/javascript]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
index d4ba399b762..536384f36e1 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,6 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%0C]
     expected: FAIL
 
-  [X-Content-Type-Options%3A%20'NosniFF']
+  [X-Content-Type-Options%3A%20%2Cnosniff]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini
new file mode 100644
index 00000000000..75d75b4cda2
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_2.html]
+  [Multiple history traversals, last would be aborted]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
new file mode 100644
index 00000000000..16fa2c5cfc1
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
@@ -0,0 +1,4 @@
+[creating_browsing_context_test_01.html]
+  [first argument: absolute url]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
new file mode 100644
index 00000000000..8cc42056d34
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
@@ -0,0 +1,10 @@
+[non-active-document.html]
+  [DOMParser]
+    expected: FAIL
+
+  [createHTMLDocument]
+    expected: FAIL
+
+  [<template>]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-submission-algorithm.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-submission-algorithm.html.ini
index 702af61a3c4..127392316de 100644
--- a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-submission-algorithm.html.ini
+++ b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-submission-algorithm.html.ini
@@ -1,11 +1,7 @@
 [form-submission-algorithm.html]
-  expected: TIMEOUT
   [If form's firing submission events is true, then return; 'submit' event]
     expected: FAIL
 
   [If form's firing submission events is true, then return; 'invalid' event]
     expected: FAIL
 
-  [Cannot navigate (after constructing the entry list)]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
new file mode 100644
index 00000000000..178680e5d14
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
@@ -0,0 +1,2 @@
+[script-onerror-insertion-point-2.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini
new file mode 100644
index 00000000000..6cf9d13975c
--- /dev/null
+++ b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/document-write/iframe_005.html.ini
@@ -0,0 +1,4 @@
+[iframe_005.html]
+  [document.write external script into iframe write back into parent]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/resource-timing/resource_TAO_zero.htm.ini b/tests/wpt/metadata/resource-timing/resource_TAO_zero.htm.ini
index aa36a14c6a6..494f0d4a752 100644
--- a/tests/wpt/metadata/resource-timing/resource_TAO_zero.htm.ini
+++ b/tests/wpt/metadata/resource-timing/resource_TAO_zero.htm.ini
@@ -20,6 +20,3 @@
   [domainLookupStart should be 0 in cross-origin request.]
     expected: FAIL
 
-  [responseEnd should be greater than 0 in cross-origin request.]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini b/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
index c6a7cc5bb41..6f05d1ae314 100644
--- a/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
+++ b/tests/wpt/metadata/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html.ini
@@ -182,3 +182,9 @@
   [X Stitched sine-wave buffers at sample rate 43800 does not equal [0,0.06264832615852356,0.12505052983760834,0.18696144223213196,0.24813786149024963,0.308339387178421,0.36732959747314453,0.4248766601085663,0.480754554271698,0.5347436666488647,0.5866320133209229,0.6362156271934509,0.6832997798919678,0.7276994585990906,0.7692402601242065,0.8077589869499207...\] with an element-wise tolerance of {"absoluteThreshold":0.0038986,"relativeThreshold":0}.\n\tIndex\tActual\t\t\tExpected\t\tAbsError\t\tRelError\t\tTest threshold\n\t[30\]\t9.4836157560348511e-1\t9.5236867666244507e-1\t4.0071010589599609e-3\t4.2075103446311962e-3\t3.8985999999999999e-3\n\t[31\]\t9.2646563053131104e-1\t9.3139332532882690e-1\t4.9276947975158691e-3\t5.2906700783754857e-3\t3.8985999999999999e-3\n\t[32\]\t9.0087991952896118e-1\t9.0675884485244751e-1\t5.8789253234863281e-3\t6.4834496590358351e-3\t3.8985999999999999e-3\n\t[33\]\t8.7170630693435669e-1\t8.7856203317642212e-1\t6.8557262420654297e-3\t7.8033490899654511e-3\t3.8985999999999999e-3\n\t[34\]\t8.3906102180480957e-1\t8.4691369533538818e-1\t7.8526735305786133e-3\t9.2721059699818163e-3\t3.8985999999999999e-3\n\t...and 31037 more errors.\n\tMax AbsError of 3.1372149685965721e+38 at index of 20238.\n\t[20238\]\t-3.1372149685965721e+38\t-4.7574958205223083e-1\t3.1372149685965721e+38\t6.5942569094094308e+38\t3.8985999999999999e-3\n\tMax RelError of 6.5942569094094308e+38 at index of 20238.\n\t[20238\]\t-3.1372149685965721e+38\t-4.7574958205223083e-1\t3.1372149685965721e+38\t6.5942569094094308e+38\t3.8985999999999999e-3\n]
     expected: FAIL
 
+  [X Stitched sine-wave buffers at sample rate 43800 does not equal [0,0.06264832615852356,0.12505052983760834,0.18696144223213196,0.24813786149024963,0.308339387178421,0.36732959747314453,0.4248766601085663,0.480754554271698,0.5347436666488647,0.5866320133209229,0.6362156271934509,0.6832997798919678,0.7276994585990906,0.7692402601242065,0.8077589869499207...\] with an element-wise tolerance of {"absoluteThreshold":0.0038986,"relativeThreshold":0}.\n\tIndex\tActual\t\t\tExpected\t\tAbsError\t\tRelError\t\tTest threshold\n\t[30\]\t9.4836157560348511e-1\t9.5236867666244507e-1\t4.0071010589599609e-3\t4.2075103446311962e-3\t3.8985999999999999e-3\n\t[31\]\t9.2646563053131104e-1\t9.3139332532882690e-1\t4.9276947975158691e-3\t5.2906700783754857e-3\t3.8985999999999999e-3\n\t[32\]\t9.0087991952896118e-1\t9.0675884485244751e-1\t5.8789253234863281e-3\t6.4834496590358351e-3\t3.8985999999999999e-3\n\t[33\]\t8.7170630693435669e-1\t8.7856203317642212e-1\t6.8557262420654297e-3\t7.8033490899654511e-3\t3.8985999999999999e-3\n\t[34\]\t8.3906102180480957e-1\t8.4691369533538818e-1\t7.8526735305786133e-3\t9.2721059699818163e-3\t3.8985999999999999e-3\n\t...and 31037 more errors.\n\tMax AbsError of 9.8276454210290387e-1 at index of 39267.\n\t[39267\]\t9.0105115209404563e-14\t-9.8276454210281372e-1\t9.8276454210290387e-1\t1.0000000000000917e+0\t3.8985999999999999e-3\n\tMax RelError of 3.3137802965303198e+0 at index of 1253.\n\t[1253\]\t-4.3022233992815018e-2\t-9.9732093513011932e-3\t3.3049024641513824e-2\t3.3137802965303198e+0\t3.8985999999999999e-3\n]
+    expected: FAIL
+
+  [X SNR (21.44058247864935 dB) is not greater than or equal to 65.737. Got 21.44058247864935.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webdriver/tests/new_session/invalid_capabilities.py.ini b/tests/wpt/metadata/webdriver/tests/new_session/invalid_capabilities.py.ini
index d73849b8e4f..e2771ae0e98 100644
--- a/tests/wpt/metadata/webdriver/tests/new_session/invalid_capabilities.py.ini
+++ b/tests/wpt/metadata/webdriver/tests/new_session/invalid_capabilities.py.ini
@@ -2,6 +2,3 @@
   [test_invalid_always_match[None\]]
     expected: FAIL
 
-  [test_invalid_capabilites[value3\]]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/webxr/xrBoundedReferenceSpace_updates.https.html.ini b/tests/wpt/metadata/webxr/xrBoundedReferenceSpace_updates.https.html.ini
index 6ff00c31bef..27f6c5ed7a2 100644
--- a/tests/wpt/metadata/webxr/xrBoundedReferenceSpace_updates.https.html.ini
+++ b/tests/wpt/metadata/webxr/xrBoundedReferenceSpace_updates.https.html.ini
@@ -1,5 +1,5 @@
 [xrBoundedReferenceSpace_updates.https.html]
-  expected: TIMEOUT
+  expected: ERROR
   ['XRBoundedReferenceSpace updates properly when the changes are applied]
     expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/workers/WorkerGlobalScope-close.html.ini b/tests/wpt/metadata/workers/WorkerGlobalScope-close.html.ini
new file mode 100644
index 00000000000..fe8654e447c
--- /dev/null
+++ b/tests/wpt/metadata/workers/WorkerGlobalScope-close.html.ini
@@ -0,0 +1,4 @@
+[WorkerGlobalScope-close.html]
+  [Test sending a message after closing.]
+    expected: FAIL
+
diff --git a/tests/wpt/web-platform-tests/contacts/contacts-select.https.window.js b/tests/wpt/web-platform-tests/contacts/contacts-select.https.window.js
new file mode 100644
index 00000000000..8d1fdfbfdff
--- /dev/null
+++ b/tests/wpt/web-platform-tests/contacts/contacts-select.https.window.js
@@ -0,0 +1,148 @@
+// META: script=/resources/testdriver.js
+// META: script=/resources/testdriver-vendor.js
+// META: script=resources/helpers.js
+'use strict';
+
+// Verifies that |func|, when invoked, throws a TypeError exception.
+async function expectTypeError(func) {
+  try {
+    await func();
+  } catch (e) {
+    assert_equals(e.name, 'TypeError');
+    return;
+  }
+
+  assert_unreached('expected a TypeError, but none was thrown');
+}
+
+promise_test(async () => {
+  try {
+    await navigator.contacts.select(['name']);
+    assert_unreached('expected a SecurityError, but none was thrown');
+  } catch (e) {
+    assert_equals(e.name, 'SecurityError');
+  }
+}, 'The Contact API requires a user gesture')
+
+contactsTestWithUserActivation(async (test, setSelectedContacts) => {
+  // At least one property must be provided.
+  await expectTypeError(() => navigator.contacts.select());
+  await expectTypeError(() => navigator.contacts.select([]));
+
+  // Per WebIDL parsing, no invalid values may be provided.
+  await expectTypeError(() =>
+      navigator.contacts.select(['']));
+  await expectTypeError(() =>
+      navigator.contacts.select(['foo']));
+  await expectTypeError(() =>
+      navigator.contacts.select(['name', 'photo']));
+
+}, 'The Contact API requires valid properties to be provided');
+
+contactsTestWithUserActivation(async (test, setSelectedContacts) => {
+  // Returns a NULL result, indicating that no results are available.
+  setSelectedContacts(null);
+
+  await expectTypeError(() => navigator.contacts.select(['name']));
+
+}, 'The Contact API can fail when the selector cannot be opened');
+
+contactsTestWithUserActivation(async (test, setSelectedContacts) => {
+  // Returns two contacts with all information available.
+  setSelectedContacts([
+      { name: ['Dwight Schrute'], email: ['dwight@schrutefarmsbnb.com'], tel: ['000-0000'] },
+      { name: ['Michael Scott', 'Prison Mike'], email: ['michael@dundermifflin.com'], tel: [] },
+  ]);
+
+  let results = await navigator.contacts.select(['name', 'email', 'tel'], { multiple: true });
+  assert_equals(results.length, 2);
+  results = results.sort((c1, c2) => JSON.stringify(c1) < JSON.stringify(c2) ? -1 : 1);
+
+  {
+    const dwight = results[0];
+
+    assert_own_property(dwight, 'name');
+    assert_own_property(dwight, 'email');
+    assert_own_property(dwight, 'tel');
+
+    assert_array_equals(dwight.name, ['Dwight Schrute']);
+    assert_array_equals(dwight.email, ['dwight@schrutefarmsbnb.com']);
+    assert_array_equals(dwight.tel, ['000-0000']);
+  }
+
+  {
+    const michael = results[1];
+
+    assert_own_property(michael, 'name');
+    assert_own_property(michael, 'email');
+    assert_own_property(michael, 'tel');
+
+    assert_array_equals(michael.name, ['Michael Scott', 'Prison Mike']);
+    assert_array_equals(michael.email, ['michael@dundermifflin.com']);
+    assert_array_equals(michael.tel, []);
+  }
+}, 'The Contact API correctly returns ContactInfo entries');
+
+contactsTestWithUserActivation(async (test, setSelectedContacts) => {
+  // Returns two contacts with all information available.
+  setSelectedContacts([
+      { name: ['Dwight Schrute'], email: ['dwight@schrutefarmsbnb.com'], tel: ['000-0000'] },
+      { name: ['Michael Scott', 'Prison Mike'], email: ['michael@dundermifflin.com'], tel: [] },
+  ]);
+
+  const results = await navigator.contacts.select(['name', 'email', 'tel']);
+  assert_equals(results.length, 1);
+
+}, 'Only one contact is returned if `multiple` is not set.');
+
+contactsTestWithUserActivation(async (test, setSelectedContacts) => {
+  // Returns partial information since no e-mail addresses are requested.
+  setSelectedContacts([{ name: ['Creed'], email: ['creedthoughts@www.creedthoughts.gov.www'], tel: [] }]);
+
+  const results = await navigator.contacts.select(['name']);
+
+  assert_equals(results.length, 1);
+
+  {
+    const creed = results[0];
+
+    assert_array_equals(creed.name, ['Creed']);
+    assert_equals(creed.email, undefined);
+    assert_equals(creed.tel, undefined);
+  }
+}, 'The Contact API does not include fields that were not requested');
+
+contactsTestWithUserActivation(async (test, setSelectedContacts) => {
+  // Returns partial information since no e-mail addresses are requested.
+  setSelectedContacts([{ name: ['Kelly'], email: [], tel: [] }]);
+
+  // First request should work.
+  const promise1 = new Promise((resolve, reject) => {
+    navigator.contacts.select(['name']).then(resolve)
+                                       .catch(e => reject(e.message));
+  });
+
+  // Second request should fail (since the first one didn't complete yet).
+  const promise2 = new Promise((resolve, reject) => {
+    navigator.contacts.select(['name']).then(contacts => reject('This was supposed to fail'))
+                                       .catch(e => resolve(e.name));
+  });
+
+  const results = await Promise.all([promise1, promise2]);
+  const contacts = results[0];
+  assert_equals(contacts.length, 1);
+  const contact = contacts[0];
+  assert_equals(contact.name[0], 'Kelly');
+  assert_equals(results[1], 'InvalidStateError');
+
+}, 'The Contact API cannot be used again until the first operation is complete.');
+
+contactsTestWithUserActivation(async (test, setSelectedContacts) => {
+  const iframe = document.createElement('iframe');
+  document.body.appendChild(iframe);
+  iframe.src = 'resources/non-main-frame-select.html';
+  await new Promise(resolve => window.addEventListener('message', event => resolve(event.data)))
+      .then(data => assert_equals(data.errorMsg, 'InvalidStateError'))
+      .finally(() => iframe.remove())
+
+}, 'Test contacts.select() throws an InvalidStateError in a sub-frame');
diff --git a/tests/wpt/web-platform-tests/contacts/resources/helpers.js b/tests/wpt/web-platform-tests/contacts/resources/helpers.js
new file mode 100644
index 00000000000..88b2f1656ee
--- /dev/null
+++ b/tests/wpt/web-platform-tests/contacts/resources/helpers.js
@@ -0,0 +1,64 @@
+'use strict';
+
+// These tests rely on the User Agent providing an implementation of
+// platform contacts backends.
+//
+// In Chromium-based browsers this implementation is provided by a polyfill
+// in order to reduce the amount of test-only code shipped to users. To enable
+// these tests the browser must be run with these options:
+//
+//   --enable-blink-features=MojoJS,MojoJSTest
+const loadChromiumResources = async () => {
+  if (!window.MojoInterfaceInterceptor) {
+    // Do nothing on non-Chromium-based browsers or when the Mojo bindings are
+    // not present in the global namespace.
+    return;
+  }
+
+  const resources = [
+    '/gen/layout_test_data/mojo/public/js/mojo_bindings.js',
+    '/gen/third_party/blink/public/mojom/contacts/contacts_manager.mojom.js',
+    '/resources/chromium/contacts_manager_mock.js',
+  ];
+
+  await Promise.all(resources.map(path => {
+    const script = document.createElement('script');
+    script.src = path;
+    script.async = false;
+    const promise = new Promise((resolve, reject) => {
+      script.onload = resolve;
+      script.onerror = reject;
+    });
+    document.head.appendChild(script);
+    return promise;
+  }));
+};
+
+// User Agents must provide their own implementation of `WebContacts`,
+// which must contain the following this interface:
+// class WebContactsTest {
+//   /** @param {?Array<!ContactInfo>} contacts */
+//   setSelectedContacts(contacts);
+// }
+async function createWebContactsTest() {
+  if (typeof WebContactsTest === 'undefined') {
+    await loadChromiumResources();
+  }
+  assert_true(
+    typeof WebContactsTest !== 'undefined',
+    'Mojo testing interface is not available.'
+  );
+  return new WebContactsTest();
+}
+
+// Creates a Promise test for |func| given the |description|. The |func| will
+// be executed with `setSelectedContacts` which will allow tests to mock out
+// the result of calling navigator.contacts.select. `setSelectedContacts`
+// accepts a nullable Array of ContactInfos.
+function contactsTestWithUserActivation(func, description) {
+  promise_test(async test => {
+    const webContactsTest = await createWebContactsTest();
+    await window.test_driver.bless('request contacts');
+    return func(test, contacts => webContactsTest.setSelectedContacts(contacts));
+  }, description);
+}
diff --git a/tests/wpt/web-platform-tests/contacts/resources/non-main-frame-select.html b/tests/wpt/web-platform-tests/contacts/resources/non-main-frame-select.html
new file mode 100644
index 00000000000..c64ecd067c8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/contacts/resources/non-main-frame-select.html
@@ -0,0 +1,9 @@
+<script>
+  'use strict';
+
+  window.onload = function() {
+    navigator.contacts.select(['name', 'email'], { multiple: true })
+      .then(results => parent.postMessage({ errorMsg: '' }, '*'))
+      .catch(exception => parent.postMessage({ errorMsg: exception.name }, '*'));
+  }
+</script>
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_arguments.tentative.https.html b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_arguments.tentative.https.html
index 06c95014975..7d006926dac 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_arguments.tentative.https.html
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_arguments.tentative.https.html
@@ -11,11 +11,11 @@
 (async () => {
   const scope = 'does/not/exist';
 
-  let registration = await navigator.serviceWorker.getRegistration(scope);
-  if (registration)
-    await registration.unregister();
-  registration = await navigator.serviceWorker.register(
+  const registration = await navigator.serviceWorker.register(
       'serviceworker_cookieStore_arguments.js', {scope});
+  add_completion_callback(() => {
+    registration.unregister();
+  });
 
   fetch_tests_from_worker(registration.installing);
 })();
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_basic.tentative.https.html b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_basic.tentative.https.html
index d4385d64ea9..379a8d76421 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_basic.tentative.https.html
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_basic.tentative.https.html
@@ -11,11 +11,11 @@
 (async () => {
   const scope = 'does/not/exist';
 
-  let registration = await navigator.serviceWorker.getRegistration(scope);
-  if (registration)
-    await registration.unregister();
-  registration = await navigator.serviceWorker.register(
+  const registration = await navigator.serviceWorker.register(
       'serviceworker_cookieStore_basic.js', {scope});
+  add_completion_callback(() => {
+    registration.unregister();
+  });
 
   fetch_tests_from_worker(registration.installing);
 })();
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions.tentative.https.html b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions.tentative.https.html
index 2f26094aa2e..375bce622c3 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions.tentative.https.html
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions.tentative.https.html
@@ -12,11 +12,11 @@
   // Not using an explicit scope here in order for script URL to be in scope,
   // to cover implicit subscription URL construction.
 
-  let registration = await navigator.serviceWorker.getRegistration();
-  if (registration)
-    await registration.unregister();
-  registration = await navigator.serviceWorker.register(
+  const registration = await navigator.serviceWorker.register(
       'serviceworker_cookieStore_subscriptions.js');
+  add_completion_callback(() => {
+    registration.unregister();
+  });
 
   fetch_tests_from_worker(registration.installing);
 })();
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_basic.tentative.https.html b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_basic.tentative.https.html
index 525c3b3c5c1..0353bc2c209 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_basic.tentative.https.html
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_basic.tentative.https.html
@@ -11,11 +11,11 @@
 (async () => {
   const scope = 'scope';
 
-  let registration = await navigator.serviceWorker.getRegistration(scope);
-  if (registration)
-    await registration.unregister();
-  registration = await navigator.serviceWorker.register(
+  const registration = await navigator.serviceWorker.register(
       'serviceworker_cookieStore_subscriptions_basic.js', {scope});
+  add_completion_callback(() => {
+    registration.unregister();
+  });
 
   fetch_tests_from_worker(registration.installing);
 })();
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_empty.tentative.https.html b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_empty.tentative.https.html
index 38690fe3c72..38ec4048f19 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_empty.tentative.https.html
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_empty.tentative.https.html
@@ -10,11 +10,11 @@
 (async () => {
   const scope = 'scope';
 
-  let registration = await navigator.serviceWorker.getRegistration(scope);
-  if (registration)
-    await registration.unregister();
-  registration = await navigator.serviceWorker.register(
+  const registration = await navigator.serviceWorker.register(
       'serviceworker_cookieStore_subscriptions_empty.js', {scope});
+  add_completion_callback(() => {
+    registration.unregister();
+  });
 
   fetch_tests_from_worker(registration.installing);
 })();
diff --git a/tests/wpt/web-platform-tests/css/css-inline/inheritance.html b/tests/wpt/web-platform-tests/css/css-inline/inheritance.html
index f4c93b5b253..7728f67e159 100644
--- a/tests/wpt/web-platform-tests/css/css-inline/inheritance.html
+++ b/tests/wpt/web-platform-tests/css/css-inline/inheritance.html
@@ -18,7 +18,7 @@
 <script>
 assert_not_inherited('alignment-baseline', 'baseline', 'central');
 assert_not_inherited('baseline-shift', '0px', '10px');
-assert_inherited('dominant-baseline', 'normal', 'central');
+assert_inherited('dominant-baseline', 'auto', 'central');
 assert_not_inherited('initial-letters', 'normal', '2 3');
 assert_inherited('initial-letters-align', 'alphabetic', 'hanging');
 assert_inherited('initial-letters-wrap', 'none', 'grid');
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/inheritance.html b/tests/wpt/web-platform-tests/css/css-sizing/inheritance-001.html
similarity index 96%
rename from tests/wpt/web-platform-tests/css/css-sizing/inheritance.html
rename to tests/wpt/web-platform-tests/css/css-sizing/inheritance-001.html
index 367ad0201da..2516288e486 100644
--- a/tests/wpt/web-platform-tests/css/css-sizing/inheritance.html
+++ b/tests/wpt/web-platform-tests/css/css-sizing/inheritance-001.html
@@ -25,8 +25,6 @@ assert_not_inherited('max-height', 'none', '10px');
 assert_not_inherited('max-width', 'none', '10px');
 assert_not_inherited('min-height', 'auto', '10px');
 assert_not_inherited('min-width', 'auto', '10px');
-
-// height, width not yet tested.
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/inheritance-002.html b/tests/wpt/web-platform-tests/css/css-sizing/inheritance-002.html
new file mode 100644
index 00000000000..2af768b2c49
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-sizing/inheritance-002.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>Inheritance of CSS Intrinsic & Extrinsic Sizing properties</title>
+<link rel="help" href="https://drafts.csswg.org/css-sizing-3/#property-index">
+<meta name="assert" content="Properties do not inherit.">
+<meta name="assert" content="Properties have initial values according to the spec.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/inheritance-testcommon.js"></script>
+<style>
+  #target {
+    position: absolute;
+  }
+</style>
+</head>
+<body>
+<div id="container">
+  <div id="target"></div>
+</div>
+<script>
+// Without position absolute, the initial value
+// 'auto' gives the size of the parent element.
+assert_not_inherited('height', '0px', '10px');
+assert_not_inherited('width', '0px', '10px');
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/filter-effects/backdrop-filter-containing-block-ref.html b/tests/wpt/web-platform-tests/css/filter-effects/backdrop-filter-containing-block-ref.html
new file mode 100644
index 00000000000..f429dd9a335
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/filter-effects/backdrop-filter-containing-block-ref.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>backdrop-filter: Forms a containing block for fixed/absolute</title>
+<link rel="author" title="Mason Freed" href="mailto:masonfreed@chromium.org">
+
+
+
+<p>Expected: one green square and one red square, both 200px by 200px.</p>
+<div class="container">
+  <div class="fixed-child"></div>
+  <div class="absolute-child"></div>
+</div>
+
+<style>
+.container {
+  width: 200px;
+  will-change: transform;
+}
+
+.fixed-child {
+  position: fixed;
+  top: 0;
+  background-color: green;
+  width: 200px;
+  height: 200px;
+}
+
+.absolute-child {
+  position: absolute;
+  top: 0;
+  left: 210px;
+  background-color: red;
+  width: 200px;
+  height: 200px;
+}
+</style>
+
diff --git a/tests/wpt/web-platform-tests/css/filter-effects/backdrop-filter-containing-block.html b/tests/wpt/web-platform-tests/css/filter-effects/backdrop-filter-containing-block.html
new file mode 100644
index 00000000000..7300d7da869
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/filter-effects/backdrop-filter-containing-block.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>backdrop-filter: Forms a containing block for fixed/absolute</title>
+<link rel="author" title="Mason Freed" href="mailto:masonfreed@chromium.org">
+<link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty">
+<link rel="match"  href="backdrop-filter-containing-block-ref.html">
+
+<p>Expected: one green square and one red square, both 200px by 200px.</p>
+<div class="container">
+  <div class="fixed-child"></div>
+  <div class="absolute-child"></div>
+</div>
+
+<style>
+.container {
+  width: 200px;
+  backdrop-filter: invert(1);
+}
+
+.fixed-child {
+  position: fixed;
+  top: 0;
+  background-color: green;
+  width: 100%;
+  height: 200px;
+}
+
+.absolute-child {
+  position: absolute;
+  top: 0;
+  left: 210px;
+  background-color: red;
+  width: 100%;
+  height: 200px;
+}
+</style>
+
diff --git a/tests/wpt/web-platform-tests/custom-elements/form-associated/ElementInternals-accessibility.html b/tests/wpt/web-platform-tests/custom-elements/form-associated/ElementInternals-accessibility.html
new file mode 100644
index 00000000000..f5d96643ba2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/custom-elements/form-associated/ElementInternals-accessibility.html
@@ -0,0 +1,78 @@
+<!DOCTYPE HTML>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+class TestElement extends HTMLElement {
+  constructor() {
+    super();
+    this._internals = this.attachInternals();
+  }
+
+  get internals() {
+    return this._internals;
+  }
+
+  set internals(val) {
+    throw "Can't set internals!";
+  }
+}
+customElements.define("test-element", TestElement);
+</script>
+
+<test-element id= "testElement"></test-element>
+
+<script>
+const element = document.getElementById("testElement");
+const properties = [
+  "role",
+  "ariaActiveDescendant",
+  "ariaAtomic",
+  "ariaAutoComplete",
+  "ariaBusy",
+  "ariaChecked",
+  "ariaColCount",
+  "ariaColIndex",
+  "ariaColSpan",
+  "ariaControls",
+  "ariaCurrent",
+  "ariaDescribedBy",
+  "ariaDetails",
+  "ariaDisabled",
+  "ariaErrorMessage",
+  "ariaExpanded",
+  "ariaFlowTo",
+  "ariaHasPopup",
+  "ariaHidden",
+  "ariaKeyShortcuts",
+  "ariaLabel",
+  "ariaLabelledBy",
+  "ariaLevel",
+  "ariaLive",
+  "ariaModal",
+  "ariaMultiLine",
+  "ariaMultiSelectable",
+  "ariaOrientation",
+  "ariaOwns",
+  "ariaPlaceholder",
+  "ariaPosInSet",
+  "ariaPressed",
+  "ariaReadOnly",
+  "ariaRelevant",
+  "ariaRequired",
+  "ariaRoleDescription",
+  "ariaRowCount",
+  "ariaRowIndex",
+  "ariaRowSpan",
+  "ariaSelected",
+  "ariaSort",
+  "ariaValueMax",
+  "ariaValueMin",
+  "ariaValueNow",
+  "ariaValueText"
+];
+for (const property of properties) {
+  test(() => {
+    assert_inherits(element.internals, property);
+  }, property + " is defined in ElementInternals");
+}
+</script>
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/unload-with-beacon.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/unload-with-beacon.html
new file mode 100644
index 00000000000..b00c9a5776a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/unload-with-beacon.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<script>
+  // When told, register an unload handler that will trigger a beacon to the
+  // URL given by the sender of the message.
+  window.addEventListener('message', e => {
+      var url = e.data;
+      window.addEventListener('unload', () => {
+          navigator.sendBeacon(url, 'blah');
+      });
+      window.parent.postMessage('navigate-away', '*');
+  });
+</script>
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/unload.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/unload.tentative.https.sub.html
new file mode 100644
index 00000000000..89ebc050328
--- /dev/null
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/unload.tentative.https.sub.html
@@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src=/resources/testdriver.js></script>
+<script src=/resources/testdriver-vendor.js></script>
+<script src=/fetch/sec-metadata/resources/helper.js></script>
+<script src=/common/utils.js></script>
+<body>
+<script>
+  // The test
+  // 1. Creates a same-origin iframe
+  // 2. Adds to the iframe an unload handler that will
+  //    trigger a request to <unload_request_url>/.../record-header.py...
+  // 3. Navigate the iframe to a cross-origin url (to data: url)
+  // 4. Waits until the request goes through
+  // 5. Verifies Sec-Fetch-Site request header of the request.
+  //
+  // This is a regression test for https://crbug.com/986577.
+  function create_test(unload_request_origin, expectations) {
+    async_test(t => {
+      // STEP 1: Create an iframe.
+      let nonce = token();
+      let key = "unload-test-" + nonce;
+      let url = unload_request_origin +
+          "/fetch/sec-metadata/resources/record-header.py?file=" + key;
+      let i = document.createElement('iframe');
+      i.src = 'resources/unload-with-beacon.html';
+      i.onload = () => {
+          // STEP 2: Ask the iframe to add an unload handler.
+          i.contentWindow.postMessage(url, '*');
+      };
+      window.addEventListener('message', e => {
+          // STEP 3: Navigate the iframe away
+          i.contentWindow.location = 'data:text/html,DONE';
+      });
+      document.body.appendChild(i);
+
+      // STEPS 4 and 5: Wait for the beacon to go through and verify
+      // the request headers.
+      function wait_and_verify() {
+          t.step_timeout(() => {
+              fetch("resources/record-header.py?retrieve=true&file=" + key)
+                  .then(response => response.text())
+                  .then(text => t.step(() => {
+                      if (text == 'No header has been recorded') {
+                        wait_and_verify();
+                        return;
+                      }
+                      assert_header_equals(text, expectations);
+                      t.done();
+                  }))
+          }, 200);
+      }
+      wait_and_verify();
+    }, "Fetch from an unload handler");
+  }
+
+  create_test("https://{{host}}:{{ports[https][0]}}", {
+    "dest": "empty",
+    "site": "same-origin",
+    "user": "",
+    "mode": "no-cors"
+  });
+</script>
diff --git a/tests/wpt/web-platform-tests/interfaces/accelerometer.idl b/tests/wpt/web-platform-tests/interfaces/accelerometer.idl
index 3705d4ba0ec..35b09b8d521 100644
--- a/tests/wpt/web-platform-tests/interfaces/accelerometer.idl
+++ b/tests/wpt/web-platform-tests/interfaces/accelerometer.idl
@@ -3,7 +3,7 @@
 // (https://github.com/tidoust/reffy-reports)
 // Source: Accelerometer (https://w3c.github.io/accelerometer/)
 
-[Constructor(optional AccelerometerSensorOptions options), SecureContext,
+[Constructor(optional AccelerometerSensorOptions options = {}), SecureContext,
   Exposed=Window]
 interface Accelerometer : Sensor {
   readonly attribute double? x;
@@ -17,12 +17,12 @@ dictionary AccelerometerSensorOptions : SensorOptions {
   AccelerometerLocalCoordinateSystem referenceFrame = "device";
 };
 
-[Constructor(optional AccelerometerSensorOptions options), SecureContext,
+[Constructor(optional AccelerometerSensorOptions options = {}), SecureContext,
   Exposed=Window]
 interface LinearAccelerationSensor : Accelerometer {
 };
 
-[Constructor(optional AccelerometerSensorOptions options), SecureContext,
+[Constructor(optional AccelerometerSensorOptions options = {}), SecureContext,
   Exposed=Window]
 interface GravitySensor : Accelerometer {
 };
diff --git a/tests/wpt/web-platform-tests/interfaces/ambient-light.idl b/tests/wpt/web-platform-tests/interfaces/ambient-light.idl
index 4e44c082b07..ce335161a25 100644
--- a/tests/wpt/web-platform-tests/interfaces/ambient-light.idl
+++ b/tests/wpt/web-platform-tests/interfaces/ambient-light.idl
@@ -3,7 +3,7 @@
 // (https://github.com/tidoust/reffy-reports)
 // Source: Ambient Light Sensor (https://w3c.github.io/ambient-light/)
 
-[Constructor(optional SensorOptions sensorOptions), SecureContext, Exposed=Window]
+[Constructor(optional SensorOptions sensorOptions = {}), SecureContext, Exposed=Window]
 interface AmbientLightSensor : Sensor {
   readonly attribute double? illuminance;
 };
diff --git a/tests/wpt/web-platform-tests/interfaces/animation-worklet.idl b/tests/wpt/web-platform-tests/interfaces/animation-worklet.idl
index 615a21c76fd..02deca73a3a 100644
--- a/tests/wpt/web-platform-tests/interfaces/animation-worklet.idl
+++ b/tests/wpt/web-platform-tests/interfaces/animation-worklet.idl
@@ -15,6 +15,13 @@ interface AnimationWorkletGlobalScope : WorkletGlobalScope {
 
 callback AnimatorInstanceConstructor = any (any options, optional any state);
 
+[ Exposed=AnimationWorklet ]
+interface WorkletAnimationEffect {
+    EffectTiming         getTiming();
+    ComputedEffectTiming getComputedTiming();
+    attribute double? localTime;
+};
+
 [Exposed=Window,
  Constructor (DOMString animatorName,
               optional (AnimationEffect or sequence<AnimationEffect>)? effects = null,
@@ -26,11 +33,5 @@ interface WorkletAnimation : Animation {
 
 [Exposed=AnimationWorklet]
 interface WorkletGroupEffect {
-  sequence<AnimationEffect> getChildren();
-};
-
-[Exposed=AnimationWorklet]
-partial interface AnimationEffect {
-    // Intended for use inside Animation Worklet scope to drive the effect.
-    attribute double localTime;
+  sequence<WorkletAnimationEffect> getChildren();
 };
diff --git a/tests/wpt/web-platform-tests/interfaces/console.idl b/tests/wpt/web-platform-tests/interfaces/console.idl
index 53130711a11..3cd3c06b54b 100644
--- a/tests/wpt/web-platform-tests/interfaces/console.idl
+++ b/tests/wpt/web-platform-tests/interfaces/console.idl
@@ -12,10 +12,10 @@ namespace console { // but see namespace object requirements below
   void error(any... data);
   void info(any... data);
   void log(any... data);
-  void table(any tabularData, optional sequence<DOMString> properties);
+  void table(optional any tabularData, optional sequence<DOMString> properties);
   void trace(any... data);
   void warn(any... data);
-  void dir(any item, optional object? options);
+  void dir(optional any item, optional object? options);
   void dirxml(any... data);
 
   // Counting
diff --git a/tests/wpt/web-platform-tests/interfaces/dom.idl b/tests/wpt/web-platform-tests/interfaces/dom.idl
index 1788faae520..9da68c4b7f8 100644
--- a/tests/wpt/web-platform-tests/interfaces/dom.idl
+++ b/tests/wpt/web-platform-tests/interfaces/dom.idl
@@ -3,7 +3,7 @@
 // (https://github.com/tidoust/reffy-reports)
 // Source: DOM Standard (https://dom.spec.whatwg.org/)
 
-[Constructor(DOMString type, optional EventInit eventInitDict),
+[Constructor(DOMString type, optional EventInit eventInitDict = {}),
  Exposed=(Window,Worker,AudioWorklet)]
 interface Event {
   readonly attribute DOMString type;
@@ -45,7 +45,7 @@ partial interface Window {
   [Replaceable] readonly attribute any event; // historical
 };
 
-[Constructor(DOMString type, optional CustomEventInit eventInitDict),
+[Constructor(DOMString type, optional CustomEventInit eventInitDict = {}),
  Exposed=(Window,Worker)]
 interface CustomEvent : Event {
   readonly attribute any detail;
@@ -60,8 +60,8 @@ dictionary CustomEventInit : EventInit {
 [Constructor,
  Exposed=(Window,Worker,AudioWorklet)]
 interface EventTarget {
-  void addEventListener(DOMString type, EventListener? callback, optional (AddEventListenerOptions or boolean) options);
-  void removeEventListener(DOMString type, EventListener? callback, optional (EventListenerOptions or boolean) options);
+  void addEventListener(DOMString type, EventListener? callback, optional (AddEventListenerOptions or boolean) options = {});
+  void removeEventListener(DOMString type, EventListener? callback, optional (EventListenerOptions or boolean) options = {});
   boolean dispatchEvent(Event event);
 };
 
@@ -158,7 +158,7 @@ interface HTMLCollection {
 [Constructor(MutationCallback callback),
  Exposed=Window]
 interface MutationObserver {
-  void observe(Node target, optional MutationObserverInit options);
+  void observe(Node target, optional MutationObserverInit options = {});
   void disconnect();
   sequence<MutationRecord> takeRecords();
 };
@@ -209,7 +209,7 @@ interface Node : EventTarget {
 
   readonly attribute boolean isConnected;
   readonly attribute Document? ownerDocument;
-  Node getRootNode(optional GetRootNodeOptions options);
+  Node getRootNode(optional GetRootNodeOptions options = {});
   readonly attribute Node? parentNode;
   readonly attribute Element? parentElement;
   boolean hasChildNodes();
@@ -269,8 +269,8 @@ interface Document : Node {
   HTMLCollection getElementsByTagNameNS(DOMString? namespace, DOMString localName);
   HTMLCollection getElementsByClassName(DOMString classNames);
 
-  [CEReactions, NewObject] Element createElement(DOMString localName, optional (DOMString or ElementCreationOptions) options);
-  [CEReactions, NewObject] Element createElementNS(DOMString? namespace, DOMString qualifiedName, optional (DOMString or ElementCreationOptions) options);
+  [CEReactions, NewObject] Element createElement(DOMString localName, optional (DOMString or ElementCreationOptions) options = {});
+  [CEReactions, NewObject] Element createElementNS(DOMString? namespace, DOMString qualifiedName, optional (DOMString or ElementCreationOptions) options = {});
   [NewObject] DocumentFragment createDocumentFragment();
   [NewObject] Text createTextNode(DOMString data);
   [NewObject] CDATASection createCDATASection(DOMString data);
@@ -359,7 +359,7 @@ interface Element : Node {
   [CEReactions] Attr? setAttributeNodeNS(Attr attr);
   [CEReactions] Attr removeAttributeNode(Attr attr);
 
-  ShadowRoot attachShadow(ShadowRootInit init);
+  ShadowRoot attachShadow(optional ShadowRootInit init = {});
   readonly attribute ShadowRoot? shadowRoot;
 
   Element? closest(DOMString selectors);
diff --git a/tests/wpt/web-platform-tests/interfaces/encoding.idl b/tests/wpt/web-platform-tests/interfaces/encoding.idl
index b3086b8588c..c89cad4f9a1 100644
--- a/tests/wpt/web-platform-tests/interfaces/encoding.idl
+++ b/tests/wpt/web-platform-tests/interfaces/encoding.idl
@@ -18,10 +18,10 @@ dictionary TextDecodeOptions {
   boolean stream = false;
 };
 
-[Constructor(optional DOMString label = "utf-8", optional TextDecoderOptions options),
+[Constructor(optional DOMString label = "utf-8", optional TextDecoderOptions options = {}),
  Exposed=(Window,Worker)]
 interface TextDecoder {
-  USVString decode(optional BufferSource input, optional TextDecodeOptions options);
+  USVString decode(optional BufferSource input, optional TextDecodeOptions options = {});
 };
 TextDecoder includes TextDecoderCommon;
 
diff --git a/tests/wpt/web-platform-tests/interfaces/web-nfc.idl b/tests/wpt/web-platform-tests/interfaces/web-nfc.idl
index d5fe1c085a2..769eb7dd2f5 100644
--- a/tests/wpt/web-platform-tests/interfaces/web-nfc.idl
+++ b/tests/wpt/web-platform-tests/interfaces/web-nfc.idl
@@ -14,7 +14,7 @@ dictionary NDEFMessageInit {
   sequence<NDEFRecordInit> records;
 };
 
-typedef (DOMString or unrestricted double or ArrayBuffer or object) NDEFRecordData;
+typedef any NDEFRecordData;
 
 [Constructor(NDEFRecordInit recordInit), Exposed=Window]
 interface NDEFRecord {
diff --git a/tests/wpt/web-platform-tests/interfaces/web-share.idl b/tests/wpt/web-platform-tests/interfaces/web-share.idl
index ae1f3f8580c..f433f2314be 100644
--- a/tests/wpt/web-platform-tests/interfaces/web-share.idl
+++ b/tests/wpt/web-platform-tests/interfaces/web-share.idl
@@ -1,7 +1,7 @@
 // GENERATED CONTENT - DO NOT EDIT
 // Content was automatically extracted by Reffy into reffy-reports
 // (https://github.com/tidoust/reffy-reports)
-// Source: Web Share API - Level 1 (https://wicg.github.io/web-share/)
+// Source: Web Share API - Level 1 (https://w3c.github.io/web-share/)
 
 partial interface Navigator {
   [SecureContext] Promise<void> share(optional ShareData data = {});
diff --git a/tests/wpt/web-platform-tests/resources/chromium/contacts_manager_mock.js b/tests/wpt/web-platform-tests/resources/chromium/contacts_manager_mock.js
new file mode 100644
index 00000000000..618968ec18d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/resources/chromium/contacts_manager_mock.js
@@ -0,0 +1,64 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+'use strict';
+
+const WebContactsTest = (() => {
+  class MockContacts {
+    constructor() {
+      this.bindingSet_ = new mojo.BindingSet(blink.mojom.ContactsManager);
+
+      this.interceptor_ = new MojoInterfaceInterceptor(
+        blink.mojom.ContactsManager.name);
+      this.interceptor_.oninterfacerequest =
+          e => this.bindingSet_.addBinding(this, e.handle);
+      this.interceptor_.start();
+
+      this.selectedContacts_ = [];
+    }
+
+    async select(multiple, includeNames, includeEmails, includeTel) {
+      if (this.selectedContacts_ === null)
+        return {contacts: null};
+
+      const contactInfos = this.selectedContacts_.map(contact => {
+        const contactInfo = new blink.mojom.ContactInfo();
+        if (includeNames)
+          contactInfo.name = contact.name;
+        if (includeEmails)
+          contactInfo.email = contact.email;
+        if (includeTel)
+          contactInfo.tel = contact.tel;
+        return contactInfo;
+      });
+
+      if (!contactInfos.length) return {contacts: []};
+      if (!multiple) return {contacts: [contactInfos[0]]};
+      return {contacts: contactInfos};
+    }
+
+    setSelectedContacts(contacts) {
+      this.selectedContacts_ = contacts;
+    }
+
+    reset() {
+      this.bindingSet_.closeAllBindings();
+      this.interceptor_.stop();
+    }
+  }
+
+  const mockContacts = new MockContacts();
+
+  class ContactsTestChromium {
+    constructor() {
+      Object.freeze(this); // Make it immutable.
+    }
+
+    setSelectedContacts(contacts) {
+      mockContacts.setSelectedContacts(contacts);
+    }
+  }
+
+  return ContactsTestChromium;
+})();
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/ServiceWorkerGlobalScope/fetch-on-the-right-interface.https.any.js b/tests/wpt/web-platform-tests/service-workers/service-worker/ServiceWorkerGlobalScope/fetch-on-the-right-interface.https.any.js
new file mode 100644
index 00000000000..9a9c8198057
--- /dev/null
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/ServiceWorkerGlobalScope/fetch-on-the-right-interface.https.any.js
@@ -0,0 +1,14 @@
+// META: title=fetch method on the right interface
+// META: global=!default,serviceworker
+
+test(function() {
+    assert_false(self.hasOwnProperty('fetch'), 'ServiceWorkerGlobalScope ' +
+        'instance should not have "fetch" method as its property.');
+    assert_inherits(self, 'fetch', 'ServiceWorkerGlobalScope should ' +
+        'inherit "fetch" method.');
+    assert_own_property(self.__proto__.__proto__, 'fetch',
+        'WorkerGlobalScope should have "fetch" propery in its prototype.');
+    assert_equals(self.fetch, self.__proto__.__proto__.fetch,
+        'ServiceWorkerGlobalScope.fetch should be the same as ' +
+        'WorkerGlobalScope.fetch.');
+}, 'Fetch method on the right interface');
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/filter-repaint-ref.html b/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/filter-repaint-ref.html
new file mode 100644
index 00000000000..07563a617aa
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/filter-repaint-ref.html
@@ -0,0 +1,15 @@
+<html>
+  <svg>
+  <foreignObject style="overflow: visible;"
+      width="400" height="400" filter="url(#blur)">
+    <div id=target>test</div>
+  </foreignObject>
+  <g>
+    <defs>
+        <filter id="blur">
+          <feGaussianBlur stdDeviation="0.1"/>
+        </filter>
+    </defs>
+    </g>
+  </svg>
+</html>
diff --git a/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/filter-repaint.html b/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/filter-repaint.html
new file mode 100644
index 00000000000..0388977841e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/extensibility/foreignObject/filter-repaint.html
@@ -0,0 +1,24 @@
+<!doctype HTML>
+<title>Test that re-painting a foreignObject element with a filter works.</title>
+<link rel="match" href="filter-repaint-ref.html">
+<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
+<link rel="help" href="https://svgwg.org/svg2-draft/single-page.html#embedded-ForeignObjectElement"/>
+<svg>
+  <foreignObject style="overflow: visible;"
+        width="400" height="400" filter="url(#blur)">
+    <div id=target>test</div>
+  </foreignObject>
+  <g>
+    <defs>
+      <filter id="blur">
+        <feGaussianBlur stdDeviation="0.1"/>
+      </filter>
+  </defs>
+  </g>
+</svg>
+<script>
+onload = () => {
+  requestAnimationFrame(() => requestAnimationFrame(() =>
+    target.style.width = '11px'));
+}
+</script>
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/requirements_firefox.txt b/tests/wpt/web-platform-tests/tools/wptrunner/requirements_firefox.txt
index 9d7520dd01f..78e53e60d94 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/requirements_firefox.txt
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/requirements_firefox.txt
@@ -1,8 +1,8 @@
 marionette_driver==2.8.0
-mozprofile==2.2.0
+mozprofile==2.3.0
 mozprocess==1.0.0
 mozcrash==1.1.0
-mozrunner==7.4.0
+mozrunner==7.5.1
 mozleak==0.2
 mozinstall==2.0.0
 mozdownload==1.26.0
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/firefox.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/firefox.py
index 13739e5103e..290fcff5ab2 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/firefox.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/firefox.py
@@ -125,6 +125,8 @@ def executor_kwargs(test_type, server_config, cache_manager, run_info_data,
         options["prefs"] = {
             "network.dns.localDomains": ",".join(server_config.domains_set)
         }
+        for pref, value in kwargs["extra_prefs"]:
+            options["prefs"].update({pref: Preferences.cast(value)})
         capabilities["moz:firefoxOptions"] = options
     if kwargs["certutil_binary"] is None:
         capabilities["acceptInsecureCerts"] = True
diff --git a/tests/wpt/web-platform-tests/web-share/META.yml b/tests/wpt/web-platform-tests/web-share/META.yml
index e054ccc8ec3..d2eccca6f42 100644
--- a/tests/wpt/web-platform-tests/web-share/META.yml
+++ b/tests/wpt/web-platform-tests/web-share/META.yml
@@ -1,4 +1,4 @@
-spec: https://wicg.github.io/web-share/
+spec: https://w3c.github.io/web-share/
 suggested_reviewers:
   - ewilligers
   - mgiuca
diff --git a/tests/wpt/web-platform-tests/web-share/idlharness.https.window.js b/tests/wpt/web-platform-tests/web-share/idlharness.https.window.js
index cbaf9d72c5c..1520387caf1 100644
--- a/tests/wpt/web-platform-tests/web-share/idlharness.https.window.js
+++ b/tests/wpt/web-platform-tests/web-share/idlharness.https.window.js
@@ -1,7 +1,7 @@
 // META: script=/resources/WebIDLParser.js
 // META: script=/resources/idlharness.js
 
-// https://wicg.github.io/web-share/
+// https://w3c.github.io/web-share/
 
 'use strict';
 
diff --git a/tests/wpt/web-platform-tests/webdriver/tests/switch_to_window/alerts.py b/tests/wpt/web-platform-tests/webdriver/tests/switch_to_window/alerts.py
index e3a33424499..8824138c2d2 100644
--- a/tests/wpt/web-platform-tests/webdriver/tests/switch_to_window/alerts.py
+++ b/tests/wpt/web-platform-tests/webdriver/tests/switch_to_window/alerts.py
@@ -3,7 +3,6 @@ import pytest
 from webdriver import error
 
 from tests.support.asserts import assert_success
-from tests.support.inline import inline
 
 
 def switch_to_window(session, handle):
@@ -19,13 +18,15 @@ def test_retain_tab_modal_status(session, create_window):
     response = switch_to_window(session, new_handle)
     assert_success(response)
 
-    session.url = inline("<script>window.alert('Hello');</script>")
+    session.execute_script("window.alert('Hello');")
     assert session.alert.text == "Hello"
+
     response = switch_to_window(session, handle)
     assert_success(response)
 
     with pytest.raises(error.NoSuchAlertException):
         session.alert.text == "Hello"
+
     response = switch_to_window(session, new_handle)
     assert_success(response)
 
diff --git a/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_disconnect.https.html b/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_disconnect.https.html
index 9ec349adeb9..66faf869964 100644
--- a/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_disconnect.https.html
+++ b/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_disconnect.https.html
@@ -77,6 +77,8 @@ let testFunction = function(session, fakeDeviceController, t) {
       "Expect to have a gamepad, iteration: " + inputChangeEvents);
     assert_equals(cached_input_source.gamepad.index, -1,
       "WebXR Gamepad.index must be -1, iteration: " + inputChangeEvents);
+    assert_equals(cached_input_source.gamepad.id, "",
+      "WebXR Gamepad.id must be empty string, iteration: " + inputChangeEvents);
     assert_true(cached_input_source.gamepad.connected,
       "Expect the gamepad to be connected, iteration: " + inputChangeEvents);
   }
@@ -88,6 +90,8 @@ let testFunction = function(session, fakeDeviceController, t) {
       "Expect to have a gamepad on cached_input_source, iteration: " + inputChangeEvents);
     assert_equals(cached_input_source.gamepad.index, -1,
       "WebXR Gamepad.index must be -1, iteration: " + inputChangeEvents);
+    assert_equals(cached_input_source.gamepad.id, "",
+      "WebXR Gamepad.id must be empty string, iteration: " + inputChangeEvents);
     assert_false(cached_input_source.gamepad.connected,
       "Expect cached gamepad to be disconnected, iteration: " + inputChangeEvents);
   }
diff --git a/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_input_registered.https.html b/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_input_registered.https.html
index 9213657a367..cb1ce7780b4 100644
--- a/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_input_registered.https.html
+++ b/tests/wpt/web-platform-tests/webxr/xrInputSource_gamepad_input_registered.https.html
@@ -52,7 +52,11 @@ let testFunction = function(session, fakeDeviceController, t) {
   function assertSameObjects() {
     assert_equals(session.inputSources[0], cached_input_source);
     assert_equals(cached_input_source.gamepad, cached_gamepad);
+
+    // Also make sure that WebXR gamepads have the index and id values required
+    // by the spec.
     assert_equals(cached_gamepad.index, -1);
+    assert_equals(cached_gamepad.id, "");
   }
 
   // Input events and gamepad state changes (button presses, axis movements)
@@ -74,6 +78,7 @@ let testFunction = function(session, fakeDeviceController, t) {
       cached_gamepad = cached_input_source.gamepad;
       t.step(() => {
         assert_equals(cached_gamepad.index, -1);
+        assert_equals(cached_gamepad.id, "");
         assert_equals(cached_gamepad.buttons.length, 3);
         assert_equals(cached_gamepad.axes.length, 2);
         // Initially, the button should not be pressed and the axes values should