diff --git a/dom/base/use_counter_metrics.yaml b/dom/base/use_counter_metrics.yaml
index c3830ede7637a047ffa285c0e8e281befd933f18..ddc8be98dc969c54774682361bc1f191754a4609 100644
--- a/dom/base/use_counter_metrics.yaml
+++ b/dom/base/use_counter_metrics.yaml
@@ -21765,6 +21765,22 @@ use.counter.css.page:
     send_in_pings:
       - use-counters
 
+  css_zen_window_transform_origin:
+    type: counter
+    description: >
+      Whether a page used the CSS property -zen-window-transform-origin.
+      Compare against `use.counter.top_level_content_documents_destroyed`
+      to calculate the rate.
+    bugs:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1852098
+    data_reviews:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1852098
+    notification_emails:
+      - dom-core@mozilla.com
+    expires: never
+    send_in_pings:
+      - use-counters
+
   css_transform_origin:
     type: counter
     description: >
@@ -33752,6 +33768,22 @@ use.counter.css.doc:
     send_in_pings:
       - use-counters
 
+  css_zen_window_transform_origin:
+    type: counter
+    description: >
+      Whether a document used the CSS property -zen-window-transform-origin.
+      Compare against `use.counter.content_documents_destroyed`
+      to calculate the rate.
+    bugs:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1852098
+    data_reviews:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1852098
+    notification_emails:
+      - dom-core@mozilla.com
+    expires: never
+    send_in_pings:
+      - use-counters
+
   css_transform_origin:
     type: counter
     description: >
