diff --git a/components/style/properties/longhands/box.mako.rs b/components/style/properties/longhands/box.mako.rs
index 14fd3402265..7010aab5a4f 100644
--- a/components/style/properties/longhands/box.mako.rs
+++ b/components/style/properties/longhands/box.mako.rs
@@ -450,6 +450,7 @@ ${helpers.predefined_type(
     "computed::ContainerType::Normal",
     engines="gecko servo",
     animation_value_type="none",
+    enabled_in="ua",
     gecko_pref="layout.css.container-queries.enabled",
     servo_pref="layout.container-queries.enabled",
     spec="https://drafts.csswg.org/css-contain-3/#container-type",
@@ -461,6 +462,7 @@ ${helpers.predefined_type(
     "computed::ContainerName::none()",
     engines="gecko servo",
     animation_value_type="none",
+    enabled_in="ua",
     gecko_pref="layout.css.container-queries.enabled",
     servo_pref="layout.container-queries.enabled",
     spec="https://drafts.csswg.org/css-contain-3/#container-name",
diff --git a/components/style/properties/shorthands/box.mako.rs b/components/style/properties/shorthands/box.mako.rs
index cd67dfcb75e..259febc7507 100644
--- a/components/style/properties/shorthands/box.mako.rs
+++ b/components/style/properties/shorthands/box.mako.rs
@@ -37,7 +37,8 @@ ${helpers.two_properties_shorthand(
     engines="gecko"
     name="container"
     sub_properties="container-name container-type"
-    gecko_pref="layout.css.container-queries.enabled",
+    gecko_pref="layout.css.container-queries.enabled"
+    enabled_in="ua"
     spec="https://drafts.csswg.org/css-contain-3/#container-shorthand"
 >
     use crate::values::specified::box_::{ContainerName, ContainerType};