--- a/testing/web-platform/meta/MANIFEST.json
+++ b/testing/web-platform/meta/MANIFEST.json
@@ -553514,25 +553514,25 @@
    "956e5156fd8c0e75b1c0f3b8b3b900b653663f74",
    "support"
   ],
   "css/cssom-view/support/test-tr.png": [
    "078e1dd6dd61d36cec239ed75d02051f61fe60a5",
    "support"
   ],
   "css/cssom-view/table-client-props.html": [
-   "54115121d05823e9317f68de5fdad4a03b94bd19",
+   "92dd07645a8ce7ef71eec2459d8aa91085720390",
    "testharness"
   ],
   "css/cssom-view/table-offset-props.html": [
-   "7327b44c0f8ed0c8ff2d4a36b89255eca85a064f",
+   "c9a06fbd38d57b2d25f0922a7ce09bbd8ca871dc",
    "testharness"
   ],
   "css/cssom-view/table-scroll-props.html": [
-   "f8a18c1a89a24551113eebed4937729a5a581de8",
+   "47e55907361861a931c1c12bbde64b6bef46d927",
    "testharness"
   ],
   "css/cssom-view/ttwf-js-cssomview-getclientrects-length.html": [
    "7f3440e65abbe692e3c28f1f1d04671054ecc815",
    "testharness"
   ],
   "css/cssom-view/window-screen-height-immutable.html": [
    "3193a200624217a260e17660006e9ce31a52814c",
@@ -624714,17 +624714,17 @@
    "f3e48d8ddd42f1eecb36af2a8e1cfade6d0a02d4",
    "testharness"
   ],
   "web-animations/animation-model/animation-types/interpolation-per-property.html": [
    "ab09cd8b77d05a1036f9976c3f0e92a6d9e183f3",
    "testharness"
   ],
   "web-animations/animation-model/animation-types/property-list.js": [
-   "a6c524f515065db203ae5395f699b857eb279cd4",
+   "f40a685eda7a9dd97fb34f6c3bfe365e0c06beca",
    "support"
   ],
   "web-animations/animation-model/animation-types/property-types.js": [
    "ecfe1d54d687bc6d0541b4a8c5ca9cf82c4d129e",
    "support"
   ],
   "web-animations/animation-model/animation-types/visibility.html": [
    "da3370704ca9e83a1171a64320a240e3145fab2c",

new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/web-animations/timing-model/timelines/update-and-send-events.html.ini
@@ -0,0 +1,3 @@
+[update-and-send-events.html]
+  disabled: https://bugzilla.mozilla.org/show_bug.cgi?id=1474811
+