diff --git a/files/en-us/mozilla/firefox/experimental_features/index.md b/files/en-us/mozilla/firefox/experimental_features/index.md
index ad90b268044291e..60b67b1efda88ad 100644
--- a/files/en-us/mozilla/firefox/experimental_features/index.md
+++ b/files/en-us/mozilla/firefox/experimental_features/index.md
@@ -1239,6 +1239,48 @@ See [Firefox bug 1740530](https://bugzil.la/1740530) for more details.
   </tbody>
 </table>
 
+#### CSS Properties and Values API
+
+The [CSS Properties and Values API](/en-US/docs/Web/API/CSS_Properties_and_Values_API) allows developers to register custom CSS properties through JavaScript via [`registerProperty()`](/en-US/docs/Web/API/CSS/registerProperty_static) or in CSS using the [`@property`](/en-US/docs/Web/CSS/@property) at-rule.
+Registering properties using these two methods allows for type checking, default values, and properties that do or do not inherit values from their parent elements.
+See [Firefox bug 1840480](https://bugzil.la/1840480) for more details.
+
+<table>
+  <thead>
+    <tr>
+      <th>Release channel</th>
+      <th>Version added</th>
+      <th>Enabled by default?</th>
+    </tr>
+  </thead>
+  <tbody>
+    <tr>
+      <th>Nightly</th>
+      <td>116</td>
+      <td>Yes</td>
+    </tr>
+    <tr>
+      <th>Developer Edition</th>
+      <td>116</td>
+      <td>No</td>
+    </tr>
+    <tr>
+      <th>Beta</th>
+      <td>116</td>
+      <td>No</td>
+    </tr>
+    <tr>
+      <th>Release</th>
+      <td>116</td>
+      <td>No</td>
+    </tr>
+    <tr>
+      <th>Preference name</th>
+      <td colspan="2"><code>layout.css.property-and-value-api.enabled</code></td>
+    </tr>
+  </tbody>
+</table>
+
 ### Service Workers
 
 #### Preloading of service worker resources on navigation
diff --git a/files/en-us/web/api/css_properties_and_values_api/index.md b/files/en-us/web/api/css_properties_and_values_api/index.md
index 0acab8090a2b8ea..d35c3ff6990991a 100644
--- a/files/en-us/web/api/css_properties_and_values_api/index.md
+++ b/files/en-us/web/api/css_properties_and_values_api/index.md
@@ -2,7 +2,9 @@
 title: CSS Properties and Values API
 slug: Web/API/CSS_Properties_and_Values_API
 page-type: web-api-overview
-browser-compat: api.CSS.registerProperty
+browser-compat:
+  - api.CSSPropertyRule
+  - api.CSS.registerProperty_static
 ---
 
 {{DefaultAPISidebar("CSS Properties and Values API")}}
diff --git a/files/en-us/web/api/csspropertyrule/index.md b/files/en-us/web/api/csspropertyrule/index.md
index 7afa30a67d79afc..716639577bf2732 100644
--- a/files/en-us/web/api/csspropertyrule/index.md
+++ b/files/en-us/web/api/csspropertyrule/index.md
@@ -7,7 +7,7 @@ browser-compat: api.CSSPropertyRule
 
 {{APIRef("CSS Properties and Values API")}}
 
-The **`CSSPropertyRule`** interface of the {{domxref('CSS_Properties_and_Values_API','','',' ')}} represents a single CSS {{cssxref("@property")}} rule.
+The **`CSSPropertyRule`** interface of the [CSS Properties and Values API](/en-US/docs/Web/API/CSS_Properties_and_Values_API) represents a single CSS {{cssxref("@property")}} rule.
 
 {{InheritanceDiagram}}