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 e8c7a0ebacf..3fb69e7c975 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -158833,6 +158833,18 @@
      {}
     ]
    ],
+   "css/css-values/calc-min-height.html": [
+    [
+     "/css/css-values/calc-min-height.html",
+     [
+      [
+       "/css/reference/ref-filled-green-100px-square.xht",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-values/calc-parenthesis-stack.html": [
     [
      "/css/css-values/calc-parenthesis-stack.html",
@@ -194713,6 +194725,18 @@
      {}
     ]
    ],
+   "quirks/historical/vertical-align-in-quirks.html": [
+    [
+     "/quirks/historical/vertical-align-in-quirks.html",
+     [
+      [
+       "/quirks/historical/reference/vertical-align-in-quirks-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "quirks/line-height-in-list-item.tentative.html": [
     [
      "/quirks/line-height-in-list-item.tentative.html",
@@ -194761,18 +194785,6 @@
      {}
     ]
    ],
-   "quirks/vertical-align-in-quirks.html": [
-    [
-     "/quirks/vertical-align-in-quirks.html",
-     [
-      [
-       "/quirks/reference/vertical-align-in-quirks-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
    "service-workers/service-worker/svg-target-reftest.https.html": [
     [
      "/service-workers/service-worker/svg-target-reftest.https.html",
@@ -305851,6 +305863,11 @@
      {}
     ]
    ],
+   "quirks/historical/reference/vertical-align-in-quirks-ref.html": [
+    [
+     {}
+    ]
+   ],
    "quirks/line-height-trailing-collapsable-whitespace-ref.html": [
     [
      {}
@@ -305861,11 +305878,6 @@
      {}
     ]
    ],
-   "quirks/reference/vertical-align-in-quirks-ref.html": [
-    [
-     {}
-    ]
-   ],
    "quirks/support/test-ref-iframe.js": [
     [
      {}
@@ -348133,6 +348145,12 @@
      {}
     ]
    ],
+   "css/css-scroll-snap/parsing/scroll-padding-invalid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-padding-invalid.html",
+     {}
+    ]
+   ],
    "css/css-scroll-snap/parsing/scroll-padding-valid.html": [
     [
      "/css/css-scroll-snap/parsing/scroll-padding-valid.html",
@@ -353793,6 +353811,24 @@
      {}
     ]
    ],
+   "css/css-ui/parsing/user-select-computed.html": [
+    [
+     "/css/css-ui/parsing/user-select-computed.html",
+     {}
+    ]
+   ],
+   "css/css-ui/parsing/user-select-invalid.html": [
+    [
+     "/css/css-ui/parsing/user-select-invalid.html",
+     {}
+    ]
+   ],
+   "css/css-ui/parsing/user-select-valid.html": [
+    [
+     "/css/css-ui/parsing/user-select-valid.html",
+     {}
+    ]
+   ],
    "css/css-ui/text-overflow-023.html": [
     [
      "/css/css-ui/text-overflow-023.html",
@@ -353811,6 +353847,18 @@
      {}
     ]
    ],
+   "css/css-values/calc-background-position-002.html": [
+    [
+     "/css/css-values/calc-background-position-002.html",
+     {}
+    ]
+   ],
+   "css/css-values/calc-background-position-003.html": [
+    [
+     "/css/css-values/calc-background-position-003.html",
+     {}
+    ]
+   ],
    "css/css-values/calc-in-color-001.html": [
     [
      "/css/css-values/calc-in-color-001.html",
@@ -353835,6 +353883,18 @@
      {}
     ]
    ],
+   "css/css-values/calc-nesting-002.html": [
+    [
+     "/css/css-values/calc-nesting-002.html",
+     {}
+    ]
+   ],
+   "css/css-values/calc-nesting.html": [
+    [
+     "/css/css-values/calc-nesting.html",
+     {}
+    ]
+   ],
    "css/css-values/calc-numbers.html": [
     [
      "/css/css-values/calc-numbers.html",
@@ -353847,6 +353907,12 @@
      {}
     ]
    ],
+   "css/css-values/calc-serialization-002.html": [
+    [
+     "/css/css-values/calc-serialization-002.html",
+     {}
+    ]
+   ],
    "css/css-values/calc-serialization.html": [
     [
      "/css/css-values/calc-serialization.html",
@@ -353865,6 +353931,18 @@
      {}
     ]
    ],
+   "css/css-values/calc-z-index-fractions-001.html": [
+    [
+     "/css/css-values/calc-z-index-fractions-001.html",
+     {}
+    ]
+   ],
+   "css/css-values/getComputedStyle-border-radius-002.html": [
+    [
+     "/css/css-values/getComputedStyle-border-radius-002.html",
+     {}
+    ]
+   ],
    "css/css-values/lh-rlh-on-root-001.html": [
     [
      "/css/css-values/lh-rlh-on-root-001.html",
@@ -574397,7 +574475,7 @@
    "testharness"
   ],
   "css/css-scroll-anchoring/ancestor-change-heuristic.html": [
-   "ffe60ad775ad863bcd2a12aaefb8fbabaf9c1ce1",
+   "21adfbb6b7a56c0a098eda1843897926afb363f5",
    "testharness"
   ],
   "css/css-scroll-anchoring/anchor-updates-after-explicit-scroll.html": [
@@ -574409,7 +574487,7 @@
    "testharness"
   ],
   "css/css-scroll-anchoring/anchoring-with-bounds-clamping.html": [
-   "3adcfe598a51b13d7f8560c3c72c048157065451",
+   "e9d06579d575433cff8b4e3052b9e0bb7824c32a",
    "testharness"
   ],
   "css/css-scroll-anchoring/anonymous-block-box.html": [
@@ -574417,7 +574495,7 @@
    "testharness"
   ],
   "css/css-scroll-anchoring/basic.html": [
-   "2c46c28dc2190592d242c3260ea5cc28415c16c0",
+   "99625ba7da1ad7c86babff1a11831d74cf602ad8",
    "testharness"
   ],
   "css/css-scroll-anchoring/clamp-negative-overflow.html": [
@@ -574429,15 +574507,15 @@
    "testharness"
   ],
   "css/css-scroll-anchoring/descend-into-container-with-float.html": [
-   "a86634f9ed3dab963702600fe3afb968ebb90ca9",
+   "ff39608ff04090cde9bfb0a3eeafc15bfeb5a191",
    "testharness"
   ],
   "css/css-scroll-anchoring/descend-into-container-with-overflow.html": [
-   "3b469157dc2a15b3d861e1281806c6d0e5573f58",
+   "654f34a051dc39ea3506a73a1e96602d0c664c61",
    "testharness"
   ],
   "css/css-scroll-anchoring/exclude-fixed-position.html": [
-   "99686bdee440ab511acc55d7cb5c7a5ce97b07ad",
+   "d48d3f7cedf19ce502a5087d945675b62e62fdf9",
    "testharness"
   ],
   "css/css-scroll-anchoring/exclude-inline.html": [
@@ -574457,7 +574535,7 @@
    "testharness"
   ],
   "css/css-scroll-anchoring/inline-block.html": [
-   "fa7655bcd8afce189368ac412e094f98ccebbdca",
+   "881ff97de9ea97bd8dca6a64333a16502f4e11d4",
    "testharness"
   ],
   "css/css-scroll-anchoring/multicol-fragmented-anchor.html": [
@@ -574489,15 +574567,15 @@
    "testharness"
   ],
   "css/css-scroll-anchoring/position-change-heuristic.html": [
-   "a7ef5525cdf8d49bb6991f9ac77bb4a12a92fbcb",
+   "b36b211f586782a7616c222fce04aa98817f35c4",
    "testharness"
   ],
   "css/css-scroll-anchoring/start-edge-in-block-layout-direction.html": [
-   "4607c37b7204231adc839b3cb2241579d86e5070",
+   "638993f079d09c5a0a7476023242ed46f7850d47",
    "testharness"
   ],
   "css/css-scroll-anchoring/subtree-exclusion.html": [
-   "c384280f10fc96e2202518cb3333da346967d1a1",
+   "25961b366424b1f3686e27fc8eab677cc2f95de8",
    "testharness"
   ],
   "css/css-scroll-anchoring/text-anchor-in-vertical-rl.html": [
@@ -574505,7 +574583,7 @@
    "testharness"
   ],
   "css/css-scroll-anchoring/wrapped-text.html": [
-   "4bd2cdb3251de62aceb13504404a58023f50c044",
+   "60f11fbcfea415c17cb132aadef29260079ee83e",
    "testharness"
   ],
   "css/css-scroll-snap/META.yml": [
@@ -574545,19 +574623,23 @@
    "testharness"
   ],
   "css/css-scroll-snap/parsing/scroll-margin-valid.html": [
-   "ebf538cc1b58ae841258892139fb2591fee6c596",
+   "be3499869159c5fb29f9859889f4f2354874853c",
    "testharness"
   ],
   "css/css-scroll-snap/parsing/scroll-padding-block-valid.html": [
-   "0c495023db81246515aeacf23dd708bad67b5d6a",
+   "79f675acd5b530db6f0fc6d31a5f059651c8b1f6",
    "testharness"
   ],
   "css/css-scroll-snap/parsing/scroll-padding-inline-valid.html": [
-   "60befa1b54e3e0c061b3284aa944a6ed6f1e79c9",
+   "3fb9003585a9d9cb4af7891cd77ca91f3b8f42c0",
+   "testharness"
+  ],
+  "css/css-scroll-snap/parsing/scroll-padding-invalid.html": [
+   "9b24a539f7a9810c0bc8f92440da5c075a3d63d5",
    "testharness"
   ],
   "css/css-scroll-snap/parsing/scroll-padding-valid.html": [
-   "31d71db1b5e64b70aa2b05e989e4d93793f76b4e",
+   "0e7c86b12b5d8aa1e9f06f8f95b596c43e81e938",
    "testharness"
   ],
   "css/css-scroll-snap/parsing/scroll-snap-align-invalid.html": [
@@ -591384,6 +591466,18 @@
    "5d40b6839def0f4ace52ab0a8af818dcf2b3ea8e",
    "testharness"
   ],
+  "css/css-ui/parsing/user-select-computed.html": [
+   "d2374dbefa22a318810b9550b57dc5b61a5e6fca",
+   "testharness"
+  ],
+  "css/css-ui/parsing/user-select-invalid.html": [
+   "7fe7feeca8850cd687b97af3ca270f243abbd443",
+   "testharness"
+  ],
+  "css/css-ui/parsing/user-select-valid.html": [
+   "e78ac7ce2bb163a76d483c050931a65c264e68c2",
+   "testharness"
+  ],
   "css/css-ui/reference/box-sizing-001-ref.html": [
    "0207bc06beb00b241d59773f41ed0a8f1ee4f107",
    "support"
@@ -592776,6 +592870,14 @@
    "e41beaff211b87dd74dd6fee6f05d894ba03988d",
    "testharness"
   ],
+  "css/css-values/calc-background-position-002.html": [
+   "c1dad2eb03b45ead60e7a8f57ba29fc226e63d4d",
+   "testharness"
+  ],
+  "css/css-values/calc-background-position-003.html": [
+   "58e995f01c8b100c9d3a92106c81e07e93570b73",
+   "testharness"
+  ],
   "css/css-values/calc-ch-ex-lang-ref.html": [
    "e0ac1ead1e5247c7c1d5fb2dffdf9ee0b08dd497",
    "support"
@@ -592824,6 +592926,18 @@
    "444785ba14c21faefe56c22de0c23766ddb26c95",
    "testharness"
   ],
+  "css/css-values/calc-min-height.html": [
+   "a3cfa47213fd3ce46a7c7302b5763f49142a3767",
+   "reftest"
+  ],
+  "css/css-values/calc-nesting-002.html": [
+   "269d4e940ac4dc7d525a6039a27b64193750ca27",
+   "testharness"
+  ],
+  "css/css-values/calc-nesting.html": [
+   "f68d4ae8e98c94f99af761736f0f54d5e5cd222a",
+   "testharness"
+  ],
   "css/css-values/calc-numbers.html": [
    "995595b8a3e91ab3a72ec465d509030f082ea5bf",
    "testharness"
@@ -592848,6 +592962,10 @@
    "dfd03a695305e0721154bf26f68a5912216d9862",
    "testharness"
   ],
+  "css/css-values/calc-serialization-002.html": [
+   "a06b33e492e323386c40c333b22bd344e281fd98",
+   "testharness"
+  ],
   "css/css-values/calc-serialization.html": [
    "f92de7338d3f05a6623f3aa882e21a724f1344e5",
    "testharness"
@@ -592860,6 +592978,10 @@
    "7508a3924162b87454a180f75f17c572192c3776",
    "testharness"
   ],
+  "css/css-values/calc-z-index-fractions-001.html": [
+   "6b8ed24989fc78a10a70388faf22936094fd92fb",
+   "testharness"
+  ],
   "css/css-values/ch-unit-001.html": [
    "83374e7bb291e45a44e3002635f967611aa1a5b7",
    "reftest"
@@ -592904,6 +593026,10 @@
    "4eab829697f87606a64d60f360a04639e61ccabb",
    "reftest"
   ],
+  "css/css-values/getComputedStyle-border-radius-002.html": [
+   "8dec53f3f0ef4b3c1844fe019e76b25f5f374e38",
+   "testharness"
+  ],
   "css/css-values/ic-unit-001.html": [
    "b969278da90130eecf2c73c5accc945dda39d912",
    "reftest"
@@ -614493,7 +614619,7 @@
    "support"
   ],
   "docs/_reviewing-tests/checklist.md": [
-   "23b264241807429ccd4fa025cf264ec058a48ff5",
+   "876b468e5bc939f457f3cb2755f427c50cde5da0",
    "support"
   ],
   "docs/_reviewing-tests/email.md": [
@@ -614525,7 +614651,7 @@
    "support"
   ],
   "docs/_writing-tests/assumptions.md": [
-   "28a990a3f71964c2ae8dcade78c5ee28edadc40d",
+   "d1ab75b0f1d396508ca002ee305c08cf459f22bb",
    "support"
   ],
   "docs/_writing-tests/css-metadata.md": [
@@ -614541,7 +614667,7 @@
    "support"
   ],
   "docs/_writing-tests/general-guidelines.md": [
-   "ff099ddf0a534dbb2daf14e06460db9ceda14790",
+   "a07d55b9e1ba751852709f31e3c58c10545aba03",
    "support"
   ],
   "docs/_writing-tests/h2tests.md": [
@@ -614565,7 +614691,7 @@
    "support"
   ],
   "docs/_writing-tests/reftests.md": [
-   "f90d66dbd9148b747d95db72327b1820e4c36a0a",
+   "f56a84af3a7915f66f82594f21b5dec2481a9e07",
    "support"
   ],
   "docs/_writing-tests/rendering.md": [
@@ -614589,7 +614715,7 @@
    "support"
   ],
   "docs/_writing-tests/testharness-api.md": [
-   "657d3962c98978b4c697edc6815bde7fe2ba35c5",
+   "ab9b398376a97ef81d368a0d0b5161751b185830",
    "support"
   ],
   "docs/_writing-tests/testharness.md": [
@@ -642581,7 +642707,7 @@
    "reftest"
   ],
   "infrastructure/reftest/size-ref.html": [
-   "b2669612b79214a20f5e5901f36d5bf495bbaf6a",
+   "bb792a3feb21cc0c03d0734e97f119dcce3dd10a",
    "support"
   ],
   "infrastructure/reftest/size.html": [
@@ -656916,6 +657042,14 @@
    "bf996edf784890b51926a0aba316c9cb0fb74069",
    "reftest"
   ],
+  "quirks/historical/reference/vertical-align-in-quirks-ref.html": [
+   "7bef765150113dff53a54d8ebdf547a4183b8793",
+   "support"
+  ],
+  "quirks/historical/vertical-align-in-quirks.html": [
+   "c07672430442329a6387ee3b77adfbe82708b368",
+   "reftest"
+  ],
   "quirks/line-height-calculation.html": [
    "7e7f03a99b9c2e399383a715f522346a37094835",
    "testharness"
@@ -656940,10 +657074,6 @@
    "159d9a52a01a0b328680a530603cb496ab2d5fcf",
    "support"
   ],
-  "quirks/reference/vertical-align-in-quirks-ref.html": [
-   "2395923cd2c5d391f386bb9483178fa0e35f8d79",
-   "support"
-  ],
   "quirks/support/test-ref-iframe.js": [
    "e5df41d4249bc93b7458774524bf90f0a6f36be7",
    "support"
@@ -657004,10 +657134,6 @@
    "f2f7eab4e33858b571344940c67de9b50e18e119",
    "support"
   ],
-  "quirks/vertical-align-in-quirks.html": [
-   "1826d0152fb73c48238fb58ea6989fc270064296",
-   "reftest"
-  ],
   "referrer-policy/META.yml": [
    "a622289c0562dbac99de0a9dbd3b9a70e0783923",
    "support"
@@ -681765,7 +681891,7 @@
    "support"
   ],
   "tools/wptrunner/requirements_firefox.txt": [
-   "656d57f4b200f3ac57efbc2b0b7ddbe4a880c57a",
+   "d65b000205eb474fc17f168ebf2c9e72c4089918",
    "support"
   ],
   "tools/wptrunner/requirements_ie.txt": [
@@ -681945,11 +682071,11 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/browsers/fennec.py": [
-   "b8e4ebc4aeb9574652ec7dcd83dd0eca6b78aa94",
+   "45c83d9b816cc2b4bca26da896868408de7f273c",
    "support"
   ],
   "tools/wptrunner/wptrunner/browsers/firefox.py": [
-   "72d8f48bff7355a56bb8aec0524590fce6346824",
+   "1d2286e614f0c3eb2573c8cba131ff16120a5b51",
    "support"
   ],
   "tools/wptrunner/wptrunner/browsers/ie.py": [
@@ -682017,7 +682143,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executormarionette.py": [
-   "5791cdae957b54031186cca0ec1359f12e08b1ce",
+   "26beb194865587f56985aa5d72207a71c1858fc5",
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executoropera.py": [
@@ -682029,11 +682155,11 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorselenium.py": [
-   "1ec1393a26b3d360a0ce0d35d3c1367bc7a9f052",
+   "21868421712994e83eb317f281c6cf0ff69f5229",
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorservo.py": [
-   "654b5733f09b0e8d3abe37efd8f812e6e8396dbe",
+   "6f0052fd3a345e2191c67773f1b4e90cb77e859b",
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorservodriver.py": [
@@ -682041,7 +682167,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorwebdriver.py": [
-   "92d5576a6e7156603c66589c255d1788e06c0e12",
+   "3f8c2bb5a3f94a5230bf93e7e4192692df8f0ab3",
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/executorwebkit.py": [
@@ -682073,7 +682199,7 @@
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/reftest.js": [
-   "97b3cacafc286cd23e082f8024800bf2c29e6310",
+   "1ba98c686f09c384b714bdc36f214558a82cf3ad",
    "support"
   ],
   "tools/wptrunner/wptrunner/executors/runner.js": [
@@ -685097,7 +685223,7 @@
    "testharness"
   ],
   "wasm/jsapi/table/get-set.any.js": [
-   "c9884d9ab359ba0ec19a599bccfc661e043c60d7",
+   "ce9681142012bdbaf7e041607177f6deff425f9a",
    "testharness"
   ],
   "wasm/jsapi/table/grow.any.js": [
@@ -685117,7 +685243,7 @@
    "support"
   ],
   "wasm/jsapi/wasm-module-builder.js": [
-   "e13f4157873baf0896f42b9fd340588f4453a14a",
+   "d7dd08b2a603024e7fd002d2cc229a79726f1b06",
    "support"
   ],
   "wasm/resources/load_wasm.js": [
diff --git a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-begin-001.xht.ini b/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-begin-001.xht.ini
deleted file mode 100644
index 1105ba49c29..00000000000
--- a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-begin-001.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[insert-inline-in-blocks-n-inlines-begin-001.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-begin-003.xht.ini b/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-begin-003.xht.ini
deleted file mode 100644
index 4a9e04d5c3b..00000000000
--- a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-begin-003.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[insert-inline-in-blocks-n-inlines-begin-003.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-end-001.xht.ini b/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-end-001.xht.ini
deleted file mode 100644
index aa7d59a4027..00000000000
--- a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-end-001.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[insert-inline-in-blocks-n-inlines-end-001.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-end-003.xht.ini b/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-end-003.xht.ini
new file mode 100644
index 00000000000..5bc18522fc2
--- /dev/null
+++ b/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-end-003.xht.ini
@@ -0,0 +1,2 @@
+[insert-inline-in-blocks-n-inlines-end-003.xht]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-middle-001.xht.ini b/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-middle-001.xht.ini
deleted file mode 100644
index 608b684db5a..00000000000
--- a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-middle-001.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[insert-inline-in-blocks-n-inlines-middle-001.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-middle-003.xht.ini b/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-middle-003.xht.ini
deleted file mode 100644
index d5019c52339..00000000000
--- a/tests/wpt/metadata/css/CSS2/box-display/insert-inline-in-blocks-n-inlines-middle-003.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[insert-inline-in-blocks-n-inlines-middle-003.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/css1/c5525-fltmult-000.xht.ini b/tests/wpt/metadata/css/CSS2/css1/c5525-fltmult-000.xht.ini
deleted file mode 100644
index 9168554d7e6..00000000000
--- a/tests/wpt/metadata/css/CSS2/css1/c5525-fltmult-000.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[c5525-fltmult-000.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/linebox/border-padding-bleed-001.xht.ini b/tests/wpt/metadata/css/CSS2/linebox/border-padding-bleed-001.xht.ini
deleted file mode 100644
index 4ab0b2fcd90..00000000000
--- a/tests/wpt/metadata/css/CSS2/linebox/border-padding-bleed-001.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[border-padding-bleed-001.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/linebox/border-padding-bleed-002.xht.ini b/tests/wpt/metadata/css/CSS2/linebox/border-padding-bleed-002.xht.ini
deleted file mode 100644
index 2d5aac1e1be..00000000000
--- a/tests/wpt/metadata/css/CSS2/linebox/border-padding-bleed-002.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[border-padding-bleed-002.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/linebox/border-padding-bleed-003.xht.ini b/tests/wpt/metadata/css/CSS2/linebox/border-padding-bleed-003.xht.ini
deleted file mode 100644
index b282907315a..00000000000
--- a/tests/wpt/metadata/css/CSS2/linebox/border-padding-bleed-003.xht.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[border-padding-bleed-003.xht]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-backgrounds/background-size-028.html.ini b/tests/wpt/metadata/css/css-backgrounds/background-size-028.html.ini
deleted file mode 100644
index baa377e6a97..00000000000
--- a/tests/wpt/metadata/css/css-backgrounds/background-size-028.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[background-size-028.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-backgrounds/background-size-030.html.ini b/tests/wpt/metadata/css/css-backgrounds/background-size-030.html.ini
deleted file mode 100644
index 8f67471d49f..00000000000
--- a/tests/wpt/metadata/css/css-backgrounds/background-size-030.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[background-size-030.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/flexbox_order-box.html.ini b/tests/wpt/metadata/css/css-flexbox/flexbox_order-box.html.ini
deleted file mode 100644
index b75bebaa625..00000000000
--- a/tests/wpt/metadata/css/css-flexbox/flexbox_order-box.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[flexbox_order-box.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/ttwf-reftest-flex-direction-row-reverse.html.ini b/tests/wpt/metadata/css/css-flexbox/ttwf-reftest-flex-direction-row-reverse.html.ini
deleted file mode 100644
index 97838ec8b9f..00000000000
--- a/tests/wpt/metadata/css/css-flexbox/ttwf-reftest-flex-direction-row-reverse.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[ttwf-reftest-flex-direction-row-reverse.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/ttwf-reftest-flex-order.html.ini b/tests/wpt/metadata/css/css-flexbox/ttwf-reftest-flex-order.html.ini
deleted file mode 100644
index 484d178d5d6..00000000000
--- a/tests/wpt/metadata/css/css-flexbox/ttwf-reftest-flex-order.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[ttwf-reftest-flex-order.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-fonts/font-variant-alternates-18.html.ini b/tests/wpt/metadata/css/css-fonts/font-variant-alternates-18.html.ini
new file mode 100644
index 00000000000..a19c2f4e1df
--- /dev/null
+++ b/tests/wpt/metadata/css/css-fonts/font-variant-alternates-18.html.ini
@@ -0,0 +1,2 @@
+[font-variant-alternates-18.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-transitions/properties-value-inherit-002.html.ini b/tests/wpt/metadata/css/css-transitions/properties-value-inherit-002.html.ini
index cfd5b57b8c0..e0095f49c84 100644
--- a/tests/wpt/metadata/css/css-transitions/properties-value-inherit-002.html.ini
+++ b/tests/wpt/metadata/css/css-transitions/properties-value-inherit-002.html.ini
@@ -509,3 +509,33 @@
   [text-indent percentage(%) / values]
     expected: FAIL
 
+  [height length(mm) / values]
+    expected: FAIL
+
+  [width length(in) / values]
+    expected: FAIL
+
+  [height length(px) / values]
+    expected: FAIL
+
+  [width length(pc) / values]
+    expected: FAIL
+
+  [padding-left length(pt) / values]
+    expected: FAIL
+
+  [padding-right length(ex) / values]
+    expected: FAIL
+
+  [padding-top length(px) / values]
+    expected: FAIL
+
+  [padding-right length(px) / values]
+    expected: FAIL
+
+  [padding-right length(cm) / values]
+    expected: FAIL
+
+  [width percentage(%) / values]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transitions/transitions-animatable-properties-01.html.ini b/tests/wpt/metadata/css/css-transitions/transitions-animatable-properties-01.html.ini
index 8850ec200da..f98928005e4 100644
--- a/tests/wpt/metadata/css/css-transitions/transitions-animatable-properties-01.html.ini
+++ b/tests/wpt/metadata/css/css-transitions/transitions-animatable-properties-01.html.ini
@@ -74,3 +74,6 @@
   [opacity end]
     expected: FAIL
 
+  [word-spacing end]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-ui/parsing/user-select-valid.html.ini b/tests/wpt/metadata/css/css-ui/parsing/user-select-valid.html.ini
new file mode 100644
index 00000000000..cd251188365
--- /dev/null
+++ b/tests/wpt/metadata/css/css-ui/parsing/user-select-valid.html.ini
@@ -0,0 +1,16 @@
+[user-select-valid.html]
+  [e.style['user-select'\] = "contain" should set the property value]
+    expected: FAIL
+
+  [e.style['user-select'\] = "all" should set the property value]
+    expected: FAIL
+
+  [e.style['user-select'\] = "none" should set the property value]
+    expected: FAIL
+
+  [e.style['user-select'\] = "text" should set the property value]
+    expected: FAIL
+
+  [e.style['user-select'\] = "auto" should set the property value]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-values/calc-background-position-002.html.ini b/tests/wpt/metadata/css/css-values/calc-background-position-002.html.ini
new file mode 100644
index 00000000000..ed18ef4629e
--- /dev/null
+++ b/tests/wpt/metadata/css/css-values/calc-background-position-002.html.ini
@@ -0,0 +1,19 @@
+[calc-background-position-002.html]
+  [testing background-position: calc(18px - 7px) calc(19px - 7px)]
+    expected: FAIL
+
+  [testing background-position: calc(2px + 3px) calc(4px + 5px)]
+    expected: FAIL
+
+  [testing background-position: calc(6px + 21%) calc(7em + 22%)]
+    expected: FAIL
+
+  [testing background-position: calc(100px / 4) calc(119px / 7)]
+    expected: FAIL
+
+  [testing background-position: calc(-8px + 23%) calc(-9em + 24%)]
+    expected: FAIL
+
+  [testing background-position: calc(4 * 5px) calc(6px * 4)]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-values/calc-min-height.html.ini b/tests/wpt/metadata/css/css-values/calc-min-height.html.ini
new file mode 100644
index 00000000000..702cdd478f0
--- /dev/null
+++ b/tests/wpt/metadata/css/css-values/calc-min-height.html.ini
@@ -0,0 +1,2 @@
+[calc-min-height.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-values/calc-nesting.html.ini b/tests/wpt/metadata/css/css-values/calc-nesting.html.ini
new file mode 100644
index 00000000000..d2f1d249ed7
--- /dev/null
+++ b/tests/wpt/metadata/css/css-values/calc-nesting.html.ini
@@ -0,0 +1,4 @@
+[calc-nesting.html]
+  [Nested calcs should work with layout]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-values/calc-serialization-002.html.ini b/tests/wpt/metadata/css/css-values/calc-serialization-002.html.ini
new file mode 100644
index 00000000000..30e9a093c56
--- /dev/null
+++ b/tests/wpt/metadata/css/css-values/calc-serialization-002.html.ini
@@ -0,0 +1,7 @@
+[calc-serialization-002.html]
+  [testing calc(1em + 1.27cm + 13% + 3em)]
+    expected: FAIL
+
+  [testing calc(25.4q + 1vh + 12%)]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-values/calc-z-index-fractions-001.html.ini b/tests/wpt/metadata/css/css-values/calc-z-index-fractions-001.html.ini
new file mode 100644
index 00000000000..2c78ebfac3d
--- /dev/null
+++ b/tests/wpt/metadata/css/css-values/calc-z-index-fractions-001.html.ini
@@ -0,0 +1,4 @@
+[calc-z-index-fractions-001.html]
+  [testing z-index: calc(-3 / 2)]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/encoding/single-byte-decoder.html.ini b/tests/wpt/metadata/encoding/single-byte-decoder.html.ini
index 71d8e2b6761..ac0dd11b110 100644
--- a/tests/wpt/metadata/encoding/single-byte-decoder.html.ini
+++ b/tests/wpt/metadata/encoding/single-byte-decoder.html.ini
@@ -58,7 +58,7 @@
     expected: FAIL
 
   [windows-1254: iso_8859-9:1989 (XMLHttpRequest)]
-    expected: FAIL
+    expected: TIMEOUT
 
   [windows-1258: cp1258 (XMLHttpRequest)]
     expected: TIMEOUT
@@ -69,9 +69,6 @@
   [windows-1254: iso_8859-9 (XMLHttpRequest)]
     expected: TIMEOUT
 
-  [windows-1258: x-cp1258 (XMLHttpRequest)]
-    expected: TIMEOUT
-
   [windows-1254: windows-1254 (XMLHttpRequest)]
     expected: TIMEOUT
 
@@ -90,15 +87,9 @@
   [windows-1254: latin5 (XMLHttpRequest)]
     expected: TIMEOUT
 
-  [windows-1258: windows-1258 (XMLHttpRequest)]
-    expected: TIMEOUT
-
   [windows-1256: x-cp1256 (XMLHttpRequest)]
     expected: TIMEOUT
 
-  [windows-1255: x-cp1255 (XMLHttpRequest)]
-    expected: TIMEOUT
-
   [windows-1257: x-cp1257 (XMLHttpRequest)]
     expected: TIMEOUT
 
@@ -108,9 +99,6 @@
   [windows-1256: windows-1256 (XMLHttpRequest)]
     expected: TIMEOUT
 
-  [x-mac-cyrillic: x-mac-cyrillic (XMLHttpRequest)]
-    expected: TIMEOUT
-
   [windows-1257: windows-1257 (XMLHttpRequest)]
     expected: TIMEOUT
 
@@ -126,5 +114,11 @@
   [windows-1254: iso-ir-148 (XMLHttpRequest)]
     expected: TIMEOUT
 
+  [windows-1254: csisolatin5 (XMLHttpRequest)]
+    expected: TIMEOUT
+
+  [windows-1255: windows-1255 (XMLHttpRequest)]
+    expected: TIMEOUT
+
 
 [single-byte-decoder.html?TextDecoder]
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 18f786d4963..8597ef73f43 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -312,3 +312,6 @@
   [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
     expected: FAIL
 
+  [<iframe>: combined response Content-Type: text/html;charset=gbk text/plain text/html]
+    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 4d78243e885..ef3edb78985 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -14,6 +14,3 @@
   [X-Content-Type-Options%3A%20%22nosniFF%22]
     expected: FAIL
 
-  [Content-Type-Options%3A%20nosniff]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/bailout-exception-vs-return-xml.window.js.ini b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/bailout-exception-vs-return-xml.window.js.ini
index 764409e0182..25f0d603b3d 100644
--- a/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/bailout-exception-vs-return-xml.window.js.ini
+++ b/tests/wpt/metadata/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/bailout-exception-vs-return-xml.window.js.ini
@@ -1,5 +1,5 @@
 [bailout-exception-vs-return-xml.window.html]
-  expected: CRASH
+  expected: TIMEOUT
   [document.open should throw an InvalidStateError with XML document even when the ignore-opens-during-unload counter is greater than 0 (during beforeunload event)]
     expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/performance-timeline/webtiming-resolution.any.js.ini b/tests/wpt/metadata/performance-timeline/webtiming-resolution.any.js.ini
index 99a24216c88..7725b118e9d 100644
--- a/tests/wpt/metadata/performance-timeline/webtiming-resolution.any.js.ini
+++ b/tests/wpt/metadata/performance-timeline/webtiming-resolution.any.js.ini
@@ -12,3 +12,6 @@
   [Verifies the resolution of entry.startTime is at least 5 microseconds.]
     expected: TIMEOUT
 
+  [Verifies the resolution of performance.now() is at least 5 microseconds.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/wasm/jsapi/instance/constructor.any.js.ini b/tests/wpt/metadata/wasm/jsapi/instance/constructor.any.js.ini
index 1af4d971763..de08dc969b3 100644
--- a/tests/wpt/metadata/wasm/jsapi/instance/constructor.any.js.ini
+++ b/tests/wpt/metadata/wasm/jsapi/instance/constructor.any.js.ini
@@ -5,9 +5,6 @@
   [No imports]
     expected: FAIL
 
-  [exports and imports]
-    expected: FAIL
-
 
 [constructor.any.worker.html]
   [exports]
@@ -16,6 +13,3 @@
   [No imports]
     expected: FAIL
 
-  [exports and imports]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/wasm/jsapi/table/get-set.any.js.ini b/tests/wpt/metadata/wasm/jsapi/table/get-set.any.js.ini
index eb7aceb3f25..9ebd919ad1c 100644
--- a/tests/wpt/metadata/wasm/jsapi/table/get-set.any.js.ini
+++ b/tests/wpt/metadata/wasm/jsapi/table/get-set.any.js.ini
@@ -1,5 +1,4 @@
 [get-set.any.worker.html]
-  expected: ERROR
   [Setting out-of-range argument: NaN]
     expected: FAIL
 
@@ -75,12 +74,8 @@
   [Setting non-function]
     expected: FAIL
 
-  [Stray argument]
-    expected: FAIL
-
 
 [get-set.any.html]
-  expected: ERROR
   [Setting out-of-range argument: NaN]
     expected: FAIL
 
@@ -156,6 +151,3 @@
   [Setting non-function]
     expected: FAIL
 
-  [Stray argument]
-    expected: FAIL
-
diff --git a/tests/wpt/mozilla/meta/css/block_formatting_context_with_margin_a.html.ini b/tests/wpt/mozilla/meta/css/block_formatting_context_with_margin_a.html.ini
deleted file mode 100644
index 521563002e8..00000000000
--- a/tests/wpt/mozilla/meta/css/block_formatting_context_with_margin_a.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[block_formatting_context_with_margin_a.html]
-  expected: FAIL
diff --git a/tests/wpt/mozilla/meta/css/inline_block_baseline_a.html.ini b/tests/wpt/mozilla/meta/css/inline_block_baseline_a.html.ini
deleted file mode 100644
index ae16c8e2927..00000000000
--- a/tests/wpt/mozilla/meta/css/inline_block_baseline_a.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[inline_block_baseline_a.html]
-  expected: FAIL
diff --git a/tests/wpt/mozilla/meta/css/overconstrained_block.html.ini b/tests/wpt/mozilla/meta/css/overconstrained_block.html.ini
deleted file mode 100644
index de5f1774e72..00000000000
--- a/tests/wpt/mozilla/meta/css/overconstrained_block.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[overconstrained_block.html]
-  expected: FAIL
diff --git a/tests/wpt/mozilla/meta/css/stacked_layers.html.ini b/tests/wpt/mozilla/meta/css/stacked_layers.html.ini
deleted file mode 100644
index e13feb290c6..00000000000
--- a/tests/wpt/mozilla/meta/css/stacked_layers.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[stacked_layers.html]
-  expected: FAIL
diff --git a/tests/wpt/mozilla/meta/css/transform_skew_a.html.ini b/tests/wpt/mozilla/meta/css/transform_skew_a.html.ini
deleted file mode 100644
index 6750e22a3ca..00000000000
--- a/tests/wpt/mozilla/meta/css/transform_skew_a.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[transform_skew_a.html]
-  expected: FAIL
diff --git a/tests/wpt/mozilla/meta/css/transition_calc_implicit.html.ini b/tests/wpt/mozilla/meta/css/transition_calc_implicit.html.ini
new file mode 100644
index 00000000000..dbea4f293ad
--- /dev/null
+++ b/tests/wpt/mozilla/meta/css/transition_calc_implicit.html.ini
@@ -0,0 +1,2 @@
+[transition_calc_implicit.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/ancestor-change-heuristic.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/ancestor-change-heuristic.html
index ffe60ad775a..21adfbb6b7a 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/ancestor-change-heuristic.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/ancestor-change-heuristic.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-#space { height: 1000px; }
+#space { height: 4000px; }
 #ancestor { position: relative; }
 #before, #anchor { height: 100px; }
 #anchor { background-color: green; }
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html
index 3adcfe598a5..e9d06579d57 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html
@@ -6,7 +6,7 @@
 #changer { height: 1500px; }
 #anchor {
   width: 150px;
-  height: 1000px;
+  height: 4000px;
   background-color: pink;
 }
 
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/basic.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/basic.html
index 2c46c28dc21..99625ba7da1 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/basic.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/basic.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px; }
+body { height: 4000px; }
 div { height: 100px; }
 
 </style>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-float.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-float.html
index a86634f9ed3..ff39608ff04 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-float.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-float.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px; }
+body { height: 4000px; }
 #outer { width: 300px; }
 #outer:after { content: " "; clear:both; display: table; }
 #float {
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-overflow.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-overflow.html
index 3b469157dc2..654f34a051d 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-overflow.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-overflow.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px; }
+body { height: 4000px; }
 #outer { width: 300px; }
 #zeroheight { height: 0px; }
 #changer { height: 100px; background-color: red; }
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/exclude-fixed-position.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/exclude-fixed-position.html
index 99686bdee44..d48d3f7cedf 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/exclude-fixed-position.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/exclude-fixed-position.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px; margin: 0; }
+body { height: 4000px; margin: 0; }
 #fixed, #content { width: 200px; height: 100px; }
 #fixed { position: fixed; left: 100px; top: 50px; }
 #before { height: 50px; }
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/inline-block.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/inline-block.html
index fa7655bcd8a..881ff97de9e 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/inline-block.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/inline-block.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px }
+body { height: 4000px }
 #outer { line-height: 100px }
 #ib1, #ib2 { display: inline-block }
 
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic.html
index a7ef5525cdf..b36b211f586 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic.html
@@ -4,7 +4,7 @@
 <style>
 
 #space {
-  height: 1000px;
+  height: 4000px;
 }
 #header {
   background-color: #F5B335;
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction.html
index 4607c37b720..638993f079d 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction.html
@@ -32,9 +32,11 @@ html.vrl { writing-mode: vertical-rl; }
 .vpush { height: 80px !important; }
 .hpush { width: 70px !important; }
 
+#anchor-container {
+  display: inline-block;
+}
 #anchor {
   position: relative;
-  display: inline-block;
   background-color: #8e8;
   min-width: 100px;
   min-height: 100px;
@@ -49,8 +51,10 @@ html.vrl { writing-mode: vertical-rl; }
 </style>
 <div id="container">
   <div id="block_pusher"></div><br>
-  <div id="inline_pusher"></div><div id="anchor">
-    <div id="grower"></div>
+  <div id="inline_pusher"></div><div id="anchor-container">
+    <div id="anchor">
+      <div id="grower"></div>
+    </div>
   </div>
 </div>
 <script>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/subtree-exclusion.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/subtree-exclusion.html
index c384280f10f..25961b36642 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/subtree-exclusion.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/subtree-exclusion.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px }
+body { height: 4000px }
 #A, #B { width: 100px; background-color: #afa; }
 #B { height: 100px; }
 #inner { width: 100px; height: 100px; background-color: pink; }
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/wrapped-text.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/wrapped-text.html
index 4bd2cdb3251..60f11fbcfea 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/wrapped-text.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/wrapped-text.html
@@ -7,7 +7,7 @@ body {
   position: absolute;
   font-size: 100px;
   width: 200px;
-  height: 1000px;
+  height: 4000px;
   line-height: 100px;
 }
 
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-valid.html
index ebf538cc1b5..be349986915 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-valid.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-valid.html
@@ -11,28 +11,34 @@
 </head>
 <body>
 <script>
+test_valid_value("scroll-margin-top", "0", "0px");
 test_valid_value("scroll-margin-top", "-10px");
 test_valid_value("scroll-margin-top", "calc(2em + 3ex)");
 
 
+test_valid_value("scroll-margin-right", "0", "0px");
 test_valid_value("scroll-margin-right", "-10px");
 test_valid_value("scroll-margin-right", "calc(2em + 3ex)");
 
 
+test_valid_value("scroll-margin-bottom", "0", "0px");
 test_valid_value("scroll-margin-bottom", "-10px");
 test_valid_value("scroll-margin-bottom", "calc(2em + 3ex)");
 
 
+test_valid_value("scroll-margin-left", "0", "0px");
 test_valid_value("scroll-margin-left", "-10px");
 test_valid_value("scroll-margin-left", "calc(2em + 3ex)");
 
 
+test_valid_value("scroll-margin", "0", "0px");
 test_valid_value("scroll-margin", "-10px");
 test_valid_value("scroll-margin", "calc(2em + 3ex)");
 
 test_valid_value("scroll-margin", "1px 2px");
 test_valid_value("scroll-margin", "1px 2px 3px");
 test_valid_value("scroll-margin", "1px 2px 3px 4px");
+test_valid_value("scroll-margin", "0 0 0 0", "0px");
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-block-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-block-valid.html
index 0c495023db8..79f675acd5b 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-block-valid.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-block-valid.html
@@ -33,7 +33,7 @@ test_valid_value("scroll-padding-block", "calc(50% + 60px)");
 
 test_valid_value("scroll-padding-block", "1px 2px");
 test_valid_value("scroll-padding-block", "1px auto");
-test_valid_value("scroll-padding-block", "auto auto");
+test_valid_value("scroll-padding-block", "auto auto", "auto");
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-inline-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-inline-valid.html
index 60befa1b54e..3fb9003585a 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-inline-valid.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-inline-valid.html
@@ -33,7 +33,7 @@ test_valid_value("scroll-padding-inline", "calc(50% + 60px)");
 
 test_valid_value("scroll-padding-inline", "1px 2px");
 test_valid_value("scroll-padding-inline", "1px auto");
-test_valid_value("scroll-padding-inline", "auto auto");
+test_valid_value("scroll-padding-inline", "auto auto", "auto");
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-invalid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-invalid.html
new file mode 100644
index 00000000000..9b24a539f7a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-invalid.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-padding with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-padding">
+<meta name="assert" content="scroll-padding supports only the grammar '[ <length-percentage> | auto ]{1,4}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("scroll-padding-top", "20");
+test_invalid_value("scroll-padding-top", "-20px");
+
+
+test_invalid_value("scroll-padding-right", "20");
+test_invalid_value("scroll-padding-right", "-20px");
+
+
+test_invalid_value("scroll-padding-bottom", "20");
+test_invalid_value("scroll-padding-bottom", "-20px");
+
+
+test_invalid_value("scroll-padding-left", "20");
+test_invalid_value("scroll-padding-left", "-20px");
+
+
+test_invalid_value("scroll-padding", "20");
+test_invalid_value("scroll-padding", "-20px");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-valid.html
index 31d71db1b5e..0e7c86b12b5 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-valid.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-valid.html
@@ -12,6 +12,7 @@
 <body>
 <script>
 test_valid_value("scroll-padding-top", "auto");
+test_valid_value("scroll-padding-top", "0", "0px");
 test_valid_value("scroll-padding-top", "10px");
 test_valid_value("scroll-padding-top", "20%");
 test_valid_value("scroll-padding-top", "calc(2em + 3ex)");
@@ -19,6 +20,7 @@ test_valid_value("scroll-padding-top", "calc(50% + 60px)");
 
 
 test_valid_value("scroll-padding-right", "auto");
+test_valid_value("scroll-padding-right", "0", "0px");
 test_valid_value("scroll-padding-right", "10px");
 test_valid_value("scroll-padding-right", "20%");
 test_valid_value("scroll-padding-right", "calc(2em + 3ex)");
@@ -26,6 +28,7 @@ test_valid_value("scroll-padding-right", "calc(50% + 60px)");
 
 
 test_valid_value("scroll-padding-bottom", "auto");
+test_valid_value("scroll-padding-bottom", "0", "0px");
 test_valid_value("scroll-padding-bottom", "10px");
 test_valid_value("scroll-padding-bottom", "20%");
 test_valid_value("scroll-padding-bottom", "calc(2em + 3ex)");
@@ -33,6 +36,7 @@ test_valid_value("scroll-padding-bottom", "calc(50% + 60px)");
 
 
 test_valid_value("scroll-padding-left", "auto");
+test_valid_value("scroll-padding-left", "0", "0px");
 test_valid_value("scroll-padding-left", "10px");
 test_valid_value("scroll-padding-left", "20%");
 test_valid_value("scroll-padding-left", "calc(2em + 3ex)");
@@ -41,6 +45,7 @@ test_valid_value("scroll-padding-left", "calc(50% + 60px)");
 
 test_valid_value("scroll-padding", "auto");
 test_valid_value("scroll-padding", "10px");
+test_valid_value("scroll-padding", "0", "0px");
 test_valid_value("scroll-padding", "20%");
 test_valid_value("scroll-padding", "calc(2em + 3ex)");
 
@@ -48,7 +53,8 @@ test_valid_value("scroll-padding", "1px 2px");
 test_valid_value("scroll-padding", "1px 2px 3%");
 test_valid_value("scroll-padding", "1px 2px 3% 4px");
 test_valid_value("scroll-padding", "1px auto");
-test_valid_value("scroll-padding", "auto auto auto auto");
+test_valid_value("scroll-padding", "0 0 0 0", "0px");
+test_valid_value("scroll-padding", "auto auto auto auto", "auto");
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-ui/parsing/user-select-computed.html b/tests/wpt/web-platform-tests/css/css-ui/parsing/user-select-computed.html
new file mode 100644
index 00000000000..d2374dbefa2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-ui/parsing/user-select-computed.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS UI Level 4: getComputedValue().userSelect</title>
+<link rel="help" href="https://drafts.csswg.org/css-ui-4/#content-selection">
+<meta name="assert" content="user-select computed value is as specified.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/computed-testcommon.js"></script>
+</head>
+<body>
+<div id="target"></div>
+<script>
+test_computed_value("user-select", "auto");
+test_computed_value("user-select", "text");
+test_computed_value("user-select", "none");
+test_computed_value("user-select", "contain");
+test_computed_value("user-select", "all");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-ui/parsing/user-select-invalid.html b/tests/wpt/web-platform-tests/css/css-ui/parsing/user-select-invalid.html
new file mode 100644
index 00000000000..7fe7feeca88
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-ui/parsing/user-select-invalid.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS UI Level 4: parsing user-select with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-ui-4/#content-selection">
+<meta name="assert" content="user-select supports only the grammar 'auto | text | none | contain | all'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("user-select", "visible");
+test_invalid_value("user-select", "text contain");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-ui/parsing/user-select-valid.html b/tests/wpt/web-platform-tests/css/css-ui/parsing/user-select-valid.html
new file mode 100644
index 00000000000..e78ac7ce2bb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-ui/parsing/user-select-valid.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS UI Level 4: parsing user-select with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-ui-4/#content-selection">
+<meta name="assert" content="user-select supports the full grammar 'auto | text | none | contain | all'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("user-select", "auto");
+test_valid_value("user-select", "text");
+test_valid_value("user-select", "none");
+test_valid_value("user-select", "contain");
+test_valid_value("user-select", "all");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-values/calc-background-position-002.html b/tests/wpt/web-platform-tests/css/css-values/calc-background-position-002.html
new file mode 100644
index 00000000000..c1dad2eb03b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-values/calc-background-position-002.html
@@ -0,0 +1,78 @@
+<!DOCTYPE html>
+
+  <meta charset="UTF-8">
+
+  <title>CSS Values and Units Test: computed value of 'background-position' when specified with calc() function</title>
+
+  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
+  <link rel="help" href="https://www.w3.org/TR/css-values-3/#calc-computed-value">
+
+  <meta name="flags" content="">
+  <meta content="This test verifies how 6 calc() functions are computed for 'background-position'." name="assert">
+
+  <script src="/resources/testharness.js"></script>
+
+  <script src="/resources/testharnessreport.js"></script>
+
+  <div id="target"></div>
+
+  <script>
+  function startTesting()
+  {
+
+  var targetElement = document.getElementById("target");
+
+    function verifyComputedStyle(property_name, initial_value, specified_value, expected_value, description)
+    {
+
+    test(function()
+      {
+
+      targetElement.style.setProperty(property_name, initial_value);
+
+      /*
+      The purpose of the initial_value is to act as a fallback
+      value in case the calc() function in the specified value
+      fails or in case it generates an invalid value. Since we
+      are running 6 consecutive tests on the same element,
+      then it is necessary to 'reset' its property to an
+      initial value.
+      */
+
+      targetElement.style.setProperty(property_name, specified_value);
+
+      assert_equals(getComputedStyle(targetElement)[property_name], expected_value);
+
+      }, description);
+    }
+
+ /* verifyComputedStyle(property_name, initial_value, specified_value, expected_value, description) */
+
+    verifyComputedStyle("background-position", "initial", "calc(2px + 3px) calc(4px + 5px)", "5px 9px", "testing background-position: calc(2px + 3px) calc(4px + 5px)");
+
+    verifyComputedStyle("background-position", "initial", "calc(18px - 7px) calc(19px - 7px)", "11px 12px", "testing background-position: calc(18px - 7px) calc(19px - 7px)");
+
+    verifyComputedStyle("background-position", "initial", "calc(4 * 5px) calc(6px * 4)", "20px 24px", "testing background-position: calc(4 * 5px) calc(6px * 4)");
+
+    verifyComputedStyle("background-position", "initial", "calc(100px / 4) calc(119px / 7)", "25px 17px", "testing background-position: calc(100px / 4) calc(119px / 7)");
+
+    verifyComputedStyle("background-position", "initial", "calc(6px + 21%) calc(7em + 22%)", "calc(21% + 6px) calc(22% + 112px)", "testing background-position: calc(6px + 21%) calc(7em + 22%)");
+
+  /*
+    "
+    (...) background-position has layout-dependent behavior for
+    percentage values, and thus does not resolve percentages
+    until used-value time. Due to this, background-position
+    computation preserves the percentage in a calc(). (...)
+    "
+    https://www.w3.org/TR/css-values-3/#calc-computed-value
+  */
+
+    verifyComputedStyle("background-position", "initial", "calc(-8px + 23%) calc(-9em + 24%)", "calc(23% - 8px) calc(24% - 144px)", "testing background-position: calc(-8px + 23%) calc(-9em + 24%)");
+
+ /* verifyComputedStyle(property_name, initial_value, specified_value, expected_value, description) */
+  }
+
+  startTesting();
+
+  </script>
diff --git a/tests/wpt/web-platform-tests/css/css-values/calc-background-position-003.html b/tests/wpt/web-platform-tests/css/css-values/calc-background-position-003.html
new file mode 100644
index 00000000000..58e995f01c8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-values/calc-background-position-003.html
@@ -0,0 +1,77 @@
+<!DOCTYPE html>
+
+  <meta charset="UTF-8">
+
+  <title>CSS Values and Units Test: serialization of 'background-position' when specified with calc() function</title>
+
+  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
+  <link rel="help" href="https://www.w3.org/TR/css4-values/#calc-serialize">
+
+  <meta name="flags" content="">
+  <meta content="This test verifies how 6 calc() functions are serialized for 'background-position'." name="assert">
+
+  <script src="/resources/testharness.js"></script>
+
+  <script src="/resources/testharnessreport.js"></script>
+
+  <div id="target"></div>
+
+  <script>
+  function startTesting()
+  {
+
+  var targetElement = document.getElementById("target");
+
+    function verifySerialization(specified_value, serialization_expected, description)
+    {
+
+    test(function()
+      {
+
+      targetElement.style.backgroundPosition = specified_value;
+
+      assert_equals(targetElement.style.backgroundPosition, serialization_expected);
+
+      }, description);
+    }
+
+  /*
+    verifySerialization(specified_value, serialization_expected, description)
+  */
+
+    verifySerialization("calc(2px + 3px) calc(4px + 5px)", "calc(5px) calc(9px)", "testing background-position: calc(2px + 3px) calc(4px + 5px)");
+
+    verifySerialization("calc(18px - 7px) calc(19px - 7px)", "calc(11px) calc(12px)", "testing background-position: calc(18px - 7px) calc(19px - 7px)");
+
+    verifySerialization("calc(4 * 5px) calc(6px * 4)", "calc(20px) calc(24px)", "testing background-position: calc(4 * 5px) calc(6px * 4)");
+
+    verifySerialization("calc(100px / 4) calc(119px / 7)", "calc(25px) calc(17px)", "testing background-position: calc(100px / 4) calc(119px / 7)");
+
+  /*
+    verifySerialization(specified_value, serialization_expected, description)
+  */
+
+    verifySerialization("calc(6px + 21%) calc(7em + 22%)", "calc(21% + 6px) calc(22% + 7em)", "testing background-position: calc(6px + 21%) calc(7em + 22%)");
+
+    verifySerialization("calc(-8px + 23%) calc(-9em + 24%)", "calc(23% - 8px) calc(24% - 9em)", "testing background-position: calc(-8px + 23%) calc(-9em + 24%)");
+
+  /*
+
+  "
+  Sort the terms in the following order:
+
+    The number, if present
+
+    The percentage, if present
+
+    The dimensions, ordered by their units ASCII case-insensitive alphabetically
+  "
+  https://www.w3.org/TR/css-values-4/#math-function-serialize-a-summation
+
+  */
+
+  }
+
+  startTesting();
+
+  </script>
diff --git a/tests/wpt/web-platform-tests/css/css-values/calc-min-height.html b/tests/wpt/web-platform-tests/css/css-values/calc-min-height.html
new file mode 100644
index 00000000000..a3cfa47213f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-values/calc-min-height.html
@@ -0,0 +1,75 @@
+<!DOCTYPE html>
+
+  <meta charset="UTF-8">
+
+  <title>CSS Values and Units Test: calc() function in 'min-height' and 'box-sizing: border-box' (complex)</title>
+
+  <!--
+
+  Original test is:
+
+https://chromium.googlesource.com/chromium/src/+/c825d655f6aaf73484f9d56e9012793f5b9668cc/third_party/WebKit/LayoutTests/css3/calc/calc-min-height.html
+
+  The original test is related to:
+
+  Issue 580508: Height of content changes after multiple reloads
+  https://bugs.chromium.org/p/chromium/issues/detail?id=580508
+
+  -->
+
+  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
+  <link rel="help" href="https://www.w3.org/TR/css-values-3/#calc-notation">
+  <link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+
+  <meta name="flags" content="">
+  <meta name="assert" content="This test checks how 'min-height' with calc(percentage) and 'box-sizing' are handled. The percentage in the calc() is calculated on the content box height of div#container.">
+
+  <style>
+  div#container
+    {
+      border-bottom: transparent solid 100px;
+      border-right: transparent solid 100px;
+      height: 400px;
+      width: 100px;
+    }
+
+  div#item
+    {
+      background-color: red;
+      box-sizing: border-box;
+      height: 50px;
+      min-height: calc(50% - 100px);
+    }
+
+  div#item > div
+    {
+      background-color: green;
+      border-bottom: green solid 34px; /* arbitrary border-bottom-width value */
+      border-top: green solid 12px; /* arbitrary border-top-width value */
+      box-sizing: border-box;
+      height: 17px;
+      min-height: 100%; /* content height should be 100px - 34px - 12px == 54px */
+      overflow-y: visible;
+      /*
+      If the content height of innermost div is taller
+      than 54px, then a green rectangle (not a square)
+      will be created.
+
+      If the content height of innermost div is less
+      than 54px, then an horizontal stripe of red
+      will become visible.
+      */
+    }
+  </style>
+
+  <p>Test passes if there is a filled green square and <strong>no red</strong>.
+
+  <div id="container">
+
+    <div id="item">
+
+      <div></div>
+
+    </div>
+
+  </div>
diff --git a/tests/wpt/web-platform-tests/css/css-values/calc-nesting-002.html b/tests/wpt/web-platform-tests/css/css-values/calc-nesting-002.html
new file mode 100644
index 00000000000..269d4e940ac
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-values/calc-nesting-002.html
@@ -0,0 +1,78 @@
+<!DOCTYPE html>
+
+  <meta charset="UTF-8">
+
+  <title>CSS Values and Units Test: serialization of summation involving nested calc()</title>
+
+  <!--
+
+  This test is an adapted version of the portion of the original test
+
+  https://chromium.googlesource.com/chromium/src/+/c825d655f6aaf73484f9d56e9012793f5b9668cc/third_party/WebKit/LayoutTests/css3/calc/calc-nesting.html
+
+  which required using property-parsing-test.js
+
+  -->
+
+  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
+  <link rel="help" href="https://www.w3.org/TR/css-values-4/#math-function-simplify-an-expression">
+
+  <meta content="This test checks that how a summation involving one or more nested calc() is performed and serialized." name="assert">
+
+  <script src="/resources/testharness.js"></script>
+
+  <script src="/resources/testharnessreport.js"></script>
+
+  <div id="target"></div>
+
+  <script>
+  function startTesting()
+  {
+
+  var targetElement = document.getElementById("target");
+
+    function verifySerialization(specified_value, serialization_expected, description)
+    {
+
+    test(function()
+      {
+
+      targetElement.style.left = specified_value;
+
+      assert_equals(targetElement.style.left, serialization_expected);
+
+      }, description);
+    }
+
+    verifySerialization("calc(20px + calc(80px))", "calc(100px)", "testing calc(20px + calc(80px))");
+
+    verifySerialization("calc(calc(100px))", "calc(100px)", "testing calc(calc(100px))");
+
+    verifySerialization("calc(calc(2) * calc(50px)", "calc(100px)", "testing calc(calc(2) * calc(50px)");
+
+    verifySerialization("calc(calc(150px*2/3)", "calc(100px)", "testing calc(calc(150px*2/3)");
+
+    verifySerialization("calc(calc(2 * calc(calc(3)) + 4) * 10px)", "calc(100px)", "testing calc(calc(2 * calc(calc(3)) + 4) * 10px)");
+
+    verifySerialization("calc(50px + calc(40%))", "calc(40% + 50px)", "testing calc(50px + calc(40%))");
+
+  /*
+
+  "
+  Sort the terms in the following order:
+
+    The number, if present
+
+    The percentage, if present
+
+    The dimensions, ordered by their units ASCII case-insensitive alphabetically
+  "
+  https://www.w3.org/TR/css-values-4/#math-function-serialize-a-summation
+
+  */
+
+  }
+
+  startTesting();
+
+  </script>
diff --git a/tests/wpt/web-platform-tests/css/css-values/calc-nesting.html b/tests/wpt/web-platform-tests/css/css-values/calc-nesting.html
new file mode 100644
index 00000000000..f68d4ae8e98
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-values/calc-nesting.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+
+  <meta charset="UTF-8">
+
+  <title>CSS Values and Units Test: nested calc() functions</title>
+
+  <!--
+
+  This test is the first portion of the original test
+
+  https://chromium.googlesource.com/chromium/src/+/c825d655f6aaf73484f9d56e9012793f5b9668cc/third_party/WebKit/LayoutTests/css3/calc/calc-nesting.html
+
+  -->
+
+  <link rel="help" href="https://www.w3.org/TR/css-values-3/#calc-notation">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+#parent { width: 200px; }
+#div1 { width: calc(calc(50px)); }
+#div2 { width: calc(calc(60%) - 20px); }
+#div3 { width: calc(calc(3 * 25%)); }
+#div4 {
+    --width: calc(10% + 30px);
+    width: calc(2 * var(--width));
+}
+</style>
+<div id=parent>
+  <div id=div1></div>
+  <div id=div2></div>
+  <div id=div3></div>
+  <div id=div4></div>
+</div>
+<script>
+// Tests that require layout
+test(function(){
+    assert_equals(getComputedStyle(div1).width, "50px");
+    assert_equals(getComputedStyle(div2).width, "100px");
+    assert_equals(getComputedStyle(div3).width, "150px");
+    assert_equals(getComputedStyle(div4).width, "100px");
+}, "Nested calcs should work with layout");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-values/calc-serialization-002.html b/tests/wpt/web-platform-tests/css/css-values/calc-serialization-002.html
new file mode 100644
index 00000000000..a06b33e492e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-values/calc-serialization-002.html
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+
+  <meta charset="UTF-8">
+
+  <title>CSS Values and Units: calc() serialization of a summation (complex)</title>
+
+  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
+  <link rel="help" href="https://www.w3.org/TR/css-values-4/#compat">
+  <link rel="help" href="https://www.w3.org/TR/css-values-4/#calc-serialize">
+
+  <meta content="This test verifies how 11 summations of mixed length units are serialized. Absolute length units, relative length units, font-relative length units, viewport-percentage length units and percentage units are tested." name="assert">
+
+  <script src="/resources/testharness.js"></script>
+
+  <script src="/resources/testharnessreport.js"></script>
+
+  <div id="target"></div>
+
+  <script>
+  function startTesting()
+  {
+
+  var targetElement = document.getElementById("target");
+
+    function verifySerialization(specified_value, serialization_expected, description)
+    {
+
+    test(function()
+      {
+
+      targetElement.style.height = specified_value;
+
+      assert_equals(targetElement.style.height, serialization_expected);
+
+      }, description);
+    }
+
+  /*
+
+  "
+  Sort the terms in the following order:
+
+    The number, if present
+
+    The percentage, if present
+
+    The dimensions, ordered by their units ASCII case-insensitive alphabetically
+  "
+  https://www.w3.org/TR/css-values-4/#math-function-serialize-a-summation
+
+  cm  centimeters  1cm = 96px/2.54
+  mm  millimeters  1mm = 1/10th of 1cm
+  Q   quarter-millimeters  1Q = 1/40th of 1cm
+  in  inches  1in = 2.54cm = 96px
+  pc  picas  1pc = 1/6th of 1in
+  pt  points  1pt = 1/72th of 1in
+  px  pixels  1px = 1/96th of 1in
+
+  */
+
+    verifySerialization("calc(1vh + 2px + 3%)", "calc(3% + 2px + 1vh)", "testing calc(1vh + 2px + 3%)");
+
+    verifySerialization("calc(4px + 1vh)", "calc(4px + 1vh)", "testing calc(4px + 1vh)");
+
+    verifySerialization("calc(5px + 6em + 1vh)", "calc(6em + 5px + 1vh)", "testing calc(5px + 6em + 1vh)");
+
+    verifySerialization("calc(1vh - 7px)", "calc(-7px + 1vh)", "testing calc(1vh - 7px)");
+
+    verifySerialization("calc(-8px + 9em + 1vh)", "calc(9em - 8px + 1vh)", "testing calc(-8px + 9em + 1vh)");
+
+    verifySerialization("calc(1pc + 1in + 1vh + 10%)", "calc(10% + 112px + 1vh)", "testing calc(1pc + 1in + 1vh + 10%)");
+
+ /* verifySerialization(specified_value, serialization_expected, description)  */
+
+    verifySerialization("calc(25.4q + 1vh + 12%)", "calc(12% + 24px + 1vh)", "testing calc(25.4q + 1vh + 12%)");
+
+    verifySerialization("calc(1em + 1.27cm + 13% + 3em)", "calc(13% + 4em + 48px)", "testing calc(1em + 1.27cm + 13% + 3em)");
+
+    verifySerialization("calc(1vmin - 14%)", "calc(-14% + 1vmin)", "testing calc(1vmin - 14%)");
+
+    verifySerialization("calc(15vw + 16vmin - 17vh)", "calc(-17vh + 16vmin + 15vw)", "testing calc(15vw + 16vmin - 17vh)");
+
+    verifySerialization("calc(-80px + 25.4mm)", "calc(16px)", "testing calc(-80px + 25.4mm)");
+
+    /*
+    This calc(-80px + 25.4mm) test is on purpose last. We want the
+    div#target to occupy 16px and to not cause document box height
+    to be unneedlessly tall.
+    */
+
+  }
+
+  startTesting();
+
+  </script>
diff --git a/tests/wpt/web-platform-tests/css/css-values/calc-z-index-fractions-001.html b/tests/wpt/web-platform-tests/css/css-values/calc-z-index-fractions-001.html
new file mode 100644
index 00000000000..6b8ed24989f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-values/calc-z-index-fractions-001.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+
+  <meta charset="UTF-8">
+
+  <title>CSS Values and Units Test: computed value of 'z-index' when specified with calc() function and fractional values</title>
+
+  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
+  <link rel="help" href="https://www.w3.org/TR/css-values-4/#calc-range">
+
+  <meta name="flags" content="">
+  <meta content="This test verifies how 2 calc() functions are computed for 'z-index' when involved expressions end up being numbers halfway between adjacent integers." name="assert">
+
+  <script src="/resources/testharness.js"></script>
+
+  <script src="/resources/testharnessreport.js"></script>
+
+  <div id="target"></div>
+
+  <script>
+  function startTesting()
+  {
+
+  var targetElement = document.getElementById("target");
+
+    function verifyComputedStyle(property_name, initial_value, specified_value, expected_value, description)
+    {
+
+    test(function()
+      {
+
+      targetElement.style.setProperty(property_name, initial_value);
+
+      /*
+      The purpose of the initial_value is to act as a fallback
+      value in case the calc() function in the specified value
+      fails or in case it generates an invalid value. Since we
+      are running 2 consecutive tests on the same element,
+      then it is necessary to reset its property to an initial
+      value.
+      */
+
+      targetElement.style.setProperty(property_name, specified_value);
+
+      assert_equals(getComputedStyle(targetElement)[property_name], expected_value);
+
+      }, description);
+    }
+
+ /* verifyComputedStyle(property_name, initial_value, specified_value, expected_value, description) */
+
+    verifyComputedStyle("z-index", "auto", "calc(3 / 2)", "2", "testing z-index: calc(3 / 2)");
+
+    verifyComputedStyle("z-index", "auto", "calc(-3 / 2)", "-1", "testing z-index: calc(-3 / 2)");
+
+  }
+
+  startTesting();
+
+  </script>
diff --git a/tests/wpt/web-platform-tests/css/css-values/getComputedStyle-border-radius-002.html b/tests/wpt/web-platform-tests/css/css-values/getComputedStyle-border-radius-002.html
new file mode 100644
index 00000000000..8dec53f3f0e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-values/getComputedStyle-border-radius-002.html
@@ -0,0 +1,80 @@
+<!DOCTYPE html>
+
+  <meta charset="UTF-8">
+
+  <title>CSS Values Test: percentages in calc() and computed border-radius values</title>
+
+  <!--
+
+  Bugzilla bug report 1516454: Computed value of border-radius with calc(percentage) is incorrect
+  https://bugzilla.mozilla.org/show_bug.cgi?id=1516454
+
+  -->
+
+  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
+  <link rel="help" href="https://www.w3.org/TR/css-values-3/#calc-computed-value">
+
+  <style>
+  div#target
+    {
+      border: black solid 5px;
+      height: 100px;
+      width: 100px;
+    }
+  </style>
+
+  <script src="/resources/testharness.js"></script>
+
+  <script src="/resources/testharnessreport.js"></script>
+
+  <div id="log"></div>
+
+  <div id="target"></div>
+
+  <script>
+  function startTesting()
+  {
+
+    var targetElement = document.getElementById("target");
+
+    function compareValue(property_name, calcValue, expectedValue, description)
+    {
+
+    test(function()
+      {
+
+      targetElement.style.setProperty(property_name, "initial");
+
+      targetElement.style.setProperty(property_name, calcValue);
+
+      var computedCalcValue = getComputedStyle(targetElement)[property_name];
+
+      targetElement.style.setProperty(property_name, expectedValue);
+
+      var computedExpectedValue = getComputedStyle(targetElement)[property_name];
+
+      assert_equals(computedCalcValue, computedExpectedValue);
+
+      }, description);
+    }
+
+    compareValue("border-top-left-radius", "calc(50%)", "50%", "simple percentage conversion test 1");
+
+    compareValue("border-top-right-radius", "calc(50%)", "50%", "simple percentage conversion test 2");
+
+    compareValue("border-bottom-left-radius", "calc(50%)", "50%", "simple percentage conversion test 3");
+
+    compareValue("border-bottom-right-radius", "calc(50%)", "50%", "simple percentage conversion test 4");
+
+    compareValue("border-top-left-radius", "calc(50%) calc(25%)", "50% 25%", "percentage conversion test 5");
+
+    compareValue("border-top-right-radius", "calc(50%) calc(25%)", "50% 25%", "percentage conversion test 6");
+
+    compareValue("border-bottom-left-radius", "calc(50%) calc(25%)", "50% 25%", "percentage conversion test 7");
+
+    compareValue("border-bottom-right-radius", "calc(50%) calc(25%)", "50% 25%", "percentage conversion test 8");
+  }
+
+  startTesting();
+
+  </script>
diff --git a/tests/wpt/web-platform-tests/docs/_reviewing-tests/checklist.md b/tests/wpt/web-platform-tests/docs/_reviewing-tests/checklist.md
index 23b26424180..876b468e5bc 100644
--- a/tests/wpt/web-platform-tests/docs/_reviewing-tests/checklist.md
+++ b/tests/wpt/web-platform-tests/docs/_reviewing-tests/checklist.md
@@ -110,7 +110,7 @@ the same way as the test.
 
 <label>
 <input type="checkbox">
-The test and reference render within a 600x600 viewport, only displaying
+The test and reference render within a 800x600 viewport, only displaying
 scrollbars if their presence is being tested.
 </label>
 
@@ -180,7 +180,7 @@ several minutes thinking or asking questions.
 
 <label>
 <input type="checkbox">
-The test renders within a 600x600 viewport, only displaying scrollbars if their
+The test renders within a 800x600 viewport, only displaying scrollbars if their
 presence is being tested.
 </label>
 
diff --git a/tests/wpt/web-platform-tests/docs/_writing-tests/assumptions.md b/tests/wpt/web-platform-tests/docs/_writing-tests/assumptions.md
index 28a990a3f71..d1ab75b0f1d 100644
--- a/tests/wpt/web-platform-tests/docs/_writing-tests/assumptions.md
+++ b/tests/wpt/web-platform-tests/docs/_writing-tests/assumptions.md
@@ -8,7 +8,7 @@ The tests make a number of assumptions of the user agent, and new
 tests can freely rely on these assumptions being true:
 
  * The device is a full-color device.
- * The device has a viewport width of at least 600px.
+ * The device has a viewport width of at least 800px.
  * The UA imposes no minimum font size.
  * The `medium` `font-size` computes to 16px.
  * The canvas background is `white`.
diff --git a/tests/wpt/web-platform-tests/docs/_writing-tests/general-guidelines.md b/tests/wpt/web-platform-tests/docs/_writing-tests/general-guidelines.md
index ff099ddf0a5..a07d55b9e1b 100644
--- a/tests/wpt/web-platform-tests/docs/_writing-tests/general-guidelines.md
+++ b/tests/wpt/web-platform-tests/docs/_writing-tests/general-guidelines.md
@@ -90,7 +90,7 @@ headers.
 ### Be Short
 
 Tests should be as short as possible. For reftests in particular
-scrollbars at 600&#xD7;600px window size must be avoided unless scrolling
+scrollbars at 800&#xD7;600px window size must be avoided unless scrolling
 behavior is specifically being tested. For all tests extraneous
 elements on the page should be avoided so it is clear what is part of
 the test (for a typical testharness test, the only content on the page
diff --git a/tests/wpt/web-platform-tests/docs/_writing-tests/reftests.md b/tests/wpt/web-platform-tests/docs/_writing-tests/reftests.md
index f90d66dbd91..f56a84af3a7 100644
--- a/tests/wpt/web-platform-tests/docs/_writing-tests/reftests.md
+++ b/tests/wpt/web-platform-tests/docs/_writing-tests/reftests.md
@@ -27,7 +27,7 @@ tested. It also contains a `link` element with `rel="match"` or
 `rel="mismatch"` and `href` attribute pointing to the *reference*
 file, e.g. `<link rel=match href=references/green-box-ref.html>`. A
 `match` test only passes if the two files render pixel-for-pixel
-identically within a 600x600 window *including* scroll-bars if
+identically within a 800x600 window *including* scroll-bars if
 present; a `mismatch` test only passes if they *don't* render
 identically.
 
diff --git a/tests/wpt/web-platform-tests/docs/_writing-tests/testharness-api.md b/tests/wpt/web-platform-tests/docs/_writing-tests/testharness-api.md
index 657d3962c98..ab9b398376a 100644
--- a/tests/wpt/web-platform-tests/docs/_writing-tests/testharness-api.md
+++ b/tests/wpt/web-platform-tests/docs/_writing-tests/testharness-api.md
@@ -212,6 +212,8 @@ promise_test(function(t) {
 }, "Another example");
 ```
 
+## `EventWatcher` ##
+
 `EventWatcher` is a constructor function that allows DOM events to be handled
 using Promises, which can make it a lot easier to test a very specific series
 of events, including ensuring that unexpected events are not fired at any point.
diff --git a/tests/wpt/web-platform-tests/infrastructure/reftest/size-ref.html b/tests/wpt/web-platform-tests/infrastructure/reftest/size-ref.html
index b2669612b79..bb792a3feb2 100644
--- a/tests/wpt/web-platform-tests/infrastructure/reftest/size-ref.html
+++ b/tests/wpt/web-platform-tests/infrastructure/reftest/size-ref.html
@@ -1,2 +1,2 @@
 <!doctype html>
-<p>innerWidth x innerHeight: <span>600x600</span></p>
+<p>innerWidth x innerHeight: <span>800x600</span></p>
diff --git a/tests/wpt/web-platform-tests/quirks/historical/reference/vertical-align-in-quirks-ref.html b/tests/wpt/web-platform-tests/quirks/historical/reference/vertical-align-in-quirks-ref.html
new file mode 100644
index 00000000000..7bef7651501
--- /dev/null
+++ b/tests/wpt/web-platform-tests/quirks/historical/reference/vertical-align-in-quirks-ref.html
@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<style>
+div {
+  font-size: 10px;
+  line-height: 50px;
+  border: 1px solid blue;
+}
+img {
+  width: 1em;
+  height: 2em;
+  background: orange;
+  border: 1px solid black;
+}
+.text-top {
+  vertical-align: text-top;
+}
+.text-bottom {
+  vertical-align: text-bottom;
+}
+.top {
+  vertical-align: top;
+}
+.bottom {
+  vertical-align: bottom;
+}
+</style>
+<body>
+  <div>
+    <img class="text-top" src="/css/support/60x60-red.png">Y
+  </div>
+  <div>
+    <img class="text-bottom" src="/css/support/60x60-red.png">Y
+  </div>
+  <div>
+    <img class="top" src="/css/support/60x60-red.png">Y
+  </div>
+  <div>
+    <img class="bottom" src="/css/support/60x60-red.png">Y
+  </div>
+  <div>
+    <img class="text-top" src="/css/support/60x60-red.png"><span>Y</span>
+  </div>
+  <div>
+    <img class="text-bottom" src="/css/support/60x60-red.png"><span>Y</span>
+  </div>
+  <div>
+    <img class="top" src="/css/support/60x60-red.png"><span>Y</span>
+  </div>
+  <div>
+    <img class="bottom" src="/css/support/60x60-red.png"><span>Y</span>
+  </div>
+</body>
diff --git a/tests/wpt/web-platform-tests/quirks/vertical-align-in-quirks.html b/tests/wpt/web-platform-tests/quirks/historical/vertical-align-in-quirks.html
similarity index 59%
rename from tests/wpt/web-platform-tests/quirks/vertical-align-in-quirks.html
rename to tests/wpt/web-platform-tests/quirks/historical/vertical-align-in-quirks.html
index 1826d0152fb..c0767243044 100644
--- a/tests/wpt/web-platform-tests/quirks/vertical-align-in-quirks.html
+++ b/tests/wpt/web-platform-tests/quirks/historical/vertical-align-in-quirks.html
@@ -30,27 +30,27 @@ img {
 </style>
 <body>
   <div>
-    <img class="text-top" src="../css/support/60x60-red.png">Y
+    <img class="text-top" src="/css/support/60x60-red.png">Y
   </div>
   <div>
-    <img class="text-bottom" src="../css/support/60x60-red.png">Y
+    <img class="text-bottom" src="/css/support/60x60-red.png">Y
   </div>
   <div>
-    <img class="top" src="../css/support/60x60-red.png">Y
+    <img class="top" src="/css/support/60x60-red.png">Y
   </div>
   <div>
-    <img class="bottom" src="../css/support/60x60-red.png">Y
+    <img class="bottom" src="/css/support/60x60-red.png">Y
   </div>
   <div>
-    <img class="text-top" src="../css/support/60x60-red.png"><span>Y</span>
+    <img class="text-top" src="/css/support/60x60-red.png"><span>Y</span>
   </div>
   <div>
-    <img class="text-bottom" src="../css/support/60x60-red.png"><span>Y</span>
+    <img class="text-bottom" src="/css/support/60x60-red.png"><span>Y</span>
   </div>
   <div>
-    <img class="top" src="../css/support/60x60-red.png"><span>Y</span>
+    <img class="top" src="/css/support/60x60-red.png"><span>Y</span>
   </div>
   <div>
-    <img class="bottom" src="../css/support/60x60-red.png"><span>Y</span>
+    <img class="bottom" src="/css/support/60x60-red.png"><span>Y</span>
   </div>
 </body>
diff --git a/tests/wpt/web-platform-tests/quirks/reference/vertical-align-in-quirks-ref.html b/tests/wpt/web-platform-tests/quirks/reference/vertical-align-in-quirks-ref.html
deleted file mode 100644
index 2395923cd2c..00000000000
--- a/tests/wpt/web-platform-tests/quirks/reference/vertical-align-in-quirks-ref.html
+++ /dev/null
@@ -1,52 +0,0 @@
-<!DOCTYPE html>
-<style>
-div {
-  font-size: 10px;
-  line-height: 50px;
-  border: 1px solid blue;
-}
-img {
-  width: 1em;
-  height: 2em;
-  background: orange;
-  border: 1px solid black;
-}
-.text-top {
-  vertical-align: text-top;
-}
-.text-bottom {
-  vertical-align: text-bottom;
-}
-.top {
-  vertical-align: top;
-}
-.bottom {
-  vertical-align: bottom;
-}
-</style>
-<body>
-  <div>
-    <img class="text-top" src="../../css/support/60x60-red.png">Y
-  </div>
-  <div>
-    <img class="text-bottom" src="../../css/support/60x60-red.png">Y
-  </div>
-  <div>
-    <img class="top" src="../../css/support/60x60-red.png">Y
-  </div>
-  <div>
-    <img class="bottom" src="../../css/support/60x60-red.png">Y
-  </div>
-  <div>
-    <img class="text-top" src="../../css/support/60x60-red.png"><span>Y</span>
-  </div>
-  <div>
-    <img class="text-bottom" src="../../css/support/60x60-red.png"><span>Y</span>
-  </div>
-  <div>
-    <img class="top" src="../../css/support/60x60-red.png"><span>Y</span>
-  </div>
-  <div>
-    <img class="bottom" src="../../css/support/60x60-red.png"><span>Y</span>
-  </div>
-</body>
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 656d57f4b20..d65b000205e 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/requirements_firefox.txt
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/requirements_firefox.txt
@@ -1,7 +1,7 @@
 marionette_driver==2.7.0
 mozprofile==2.2.0
 mozprocess==1.0.0
-mozcrash == 1.0
+mozcrash==1.1.0
 mozrunner==7.3.0
 mozleak==0.2
 mozinstall==2.0.0
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/fennec.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/fennec.py
index b8e4ebc4aeb..45c83d9b816 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/fennec.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/browsers/fennec.py
@@ -146,7 +146,7 @@ class FennecBrowser(FirefoxBrowser):
                                       "network.preload": True})
         if self.test_type == "reftest":
             self.logger.info("Setting android reftest preferences")
-            self.profile.set_preferences({"browser.viewport.desktopWidth": 600,
+            self.profile.set_preferences({"browser.viewport.desktopWidth": 800,
                                           # Disable high DPI
                                           "layout.css.devPixelsPerPx": "1.0",
                                           # Ensure that the full browser element
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 72d8f48bff7..1d2286e614f 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
@@ -87,6 +87,7 @@ def browser_kwargs(test_type, run_info_data, config, **kwargs):
             "stylo_threads": kwargs["stylo_threads"],
             "chaos_mode_flags": kwargs["chaos_mode_flags"],
             "config": config,
+            "browser_channel": kwargs["browser_channel"],
             "headless": kwargs["headless"]}
 
 
@@ -187,7 +188,7 @@ class FirefoxBrowser(Browser):
                  symbols_path=None, stackwalk_binary=None, certutil_binary=None,
                  ca_certificate_path=None, e10s=False, lsan_dir=None, stackfix_dir=None,
                  binary_args=None, timeout_multiplier=None, leak_check=False, asan=False,
-                 stylo_threads=1, chaos_mode_flags=None, config=None, headless=None, **kwargs):
+                 stylo_threads=1, chaos_mode_flags=None, config=None, browser_channel="nightly", headless=None, **kwargs):
         Browser.__init__(self, logger)
         self.binary = binary
         self.prefs_root = prefs_root
@@ -224,6 +225,7 @@ class FirefoxBrowser(Browser):
         self.lsan_handler = None
         self.stylo_threads = stylo_threads
         self.chaos_mode_flags = chaos_mode_flags
+        self.browser_channel = browser_channel
         self.headless = headless
 
     def settings(self, test):
@@ -326,7 +328,10 @@ class FirefoxBrowser(Browser):
         if os.path.isfile(profiles):
             with open(profiles, 'r') as fh:
                 for name in json.load(fh)['web-platform-tests']:
-                    pref_paths.append(os.path.join(self.prefs_root, name, 'user.js'))
+                    if self.browser_channel in (None, 'nightly'):
+                        pref_paths.append(os.path.join(self.prefs_root, name, 'user.js'))
+                    elif name != 'unittest-features':
+                        pref_paths.append(os.path.join(self.prefs_root, name, 'user.js'))
         else:
             # Old preference files used before the creation of profiles.json (remove when no longer supported)
             legacy_pref_paths = (
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py
index 5791cdae957..26beb194865 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py
@@ -868,7 +868,9 @@ class InternalRefTestImplementation(object):
                                                              {"test": self.executor.test_url(test),
                                                               "references": references,
                                                               "expected": test.expected(),
-                                                              "timeout": timeout})["value"]
+                                                              "timeout": timeout,
+                                                              "width": 800,
+                                                              "height": 600})["value"]
         return rv
 
     def get_references(self, node):
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py
index 1ec1393a26b..21868421712 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py
@@ -372,7 +372,7 @@ class SeleniumRefTestExecutor(RefTestExecutor):
             """return [window.outerWidth - window.innerWidth,
                        window.outerHeight - window.innerHeight];"""
         )
-        self.protocol.webdriver.set_window_rect(0, 0, 600 + width_offset, 600 + height_offset)
+        self.protocol.webdriver.set_window_rect(0, 0, 800 + width_offset, 600 + height_offset)
 
         result = self.implementation.run_test(test)
 
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservo.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservo.py
index 654b5733f09..6f0052fd3a3 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservo.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservo.py
@@ -209,7 +209,7 @@ class ServoRefTestExecutor(ProcessTestExecutor):
             for pref, value in test.environment.get('prefs', {}).iteritems():
                 command += ["--pref", "%s=%s" % (pref, value)]
 
-            command += ["--resolution", viewport_size or "600x600"]
+            command += ["--resolution", viewport_size or "800x600"]
 
             if self.browser.ca_certificate_path:
                 command += ["--certificate-path", self.browser.ca_certificate_path]
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
index 92d5576a6e7..3f8c2bb5a3f 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
@@ -406,7 +406,7 @@ class WebDriverRefTestExecutor(RefTestExecutor):
                        window.outerHeight - window.innerHeight];"""
         )
         self.protocol.webdriver.window.position = (0, 0)
-        self.protocol.webdriver.window.size = (600 + width_offset, 600 + height_offset)
+        self.protocol.webdriver.window.size = (800 + width_offset, 600 + height_offset)
 
         result = self.implementation.run_test(test)
 
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest.js b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest.js
index 97b3cacafc2..1ba98c686f0 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest.js
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest.js
@@ -1 +1 @@
-var win = window.open("about:blank", "test", "left=0,top=0,width=600,height=600");
+var win = window.open("about:blank", "test", "left=0,top=0,width=800,height=600");
diff --git a/tests/wpt/web-platform-tests/wasm/jsapi/table/get-set.any.js b/tests/wpt/web-platform-tests/wasm/jsapi/table/get-set.any.js
index c9884d9ab35..ce968114201 100644
--- a/tests/wpt/web-platform-tests/wasm/jsapi/table/get-set.any.js
+++ b/tests/wpt/web-platform-tests/wasm/jsapi/table/get-set.any.js
@@ -3,7 +3,7 @@
 // META: script=/wasm/jsapi/wasm-module-builder.js
 // META: script=assertions.js
 
-let functions;
+let functions = {};
 setup(() => {
   const builder = new WasmModuleBuilder();
 
diff --git a/tests/wpt/web-platform-tests/wasm/jsapi/wasm-module-builder.js b/tests/wpt/web-platform-tests/wasm/jsapi/wasm-module-builder.js
index e13f4157873..d7dd08b2a60 100644
--- a/tests/wpt/web-platform-tests/wasm/jsapi/wasm-module-builder.js
+++ b/tests/wpt/web-platform-tests/wasm/jsapi/wasm-module-builder.js
@@ -98,6 +98,12 @@ class WasmFunctionBuilder {
   }
 
   addBody(body) {
+    const bodyCopy = body.slice();
+    bodyCopy.push(kExprEnd);
+    return this.addBodyWithEnd(bodyCopy);
+  }
+
+  addBodyWithEnd(body) {
     this.body = body;
     return this;
   }
@@ -262,6 +268,11 @@ class WasmModuleBuilder {
     return this.setTableBounds(length);
   }
 
+  // TODO(ssauleau): legacy, remove this
+  setTableLength(min, max = undefined) {
+    return this.setTableBounds(min, max);
+  }
+
   toArray(debug = false) {
     let binary = new Binary;
     let wasm = this;