diff --git a/files/en-us/mozilla/firefox/experimental_features/index.md b/files/en-us/mozilla/firefox/experimental_features/index.md
index 09eeb98987866d4..ee1aa62d00ddf21 100644
--- a/files/en-us/mozilla/firefox/experimental_features/index.md
+++ b/files/en-us/mozilla/firefox/experimental_features/index.md
@@ -1203,92 +1203,6 @@ This includes: `SVGPathSegList`, [SVGPathElement.getPathSegAtLength()](/en-US/do
 
 ## JavaScript
 
-### SharedArrayBuffer is growable
-
-The {{jsxref("SharedArrayBuffer")}} is now growable using the {{jsxref("SharedArrayBuffer.prototype.grow()")}} method.
-The maximum allowed size of the buffer is specified using the `options.maxByteLength` parameter to the [`SharedArrayBuffer()` constructor](/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer/SharedArrayBuffer#maxbytelength).
-The {{jsxref("SharedArrayBuffer.prototype.growable")}} and {{jsxref("SharedArrayBuffer.prototype.maxByteLength")}} properties indicate whether the buffer can be grow, and its maximum allowed size, respectively.
-([Firefox bug 1842773](https://bugzil.la/1842773)).
-
-<table>
-  <thead>
-    <tr>
-      <th>Release channel</th>
-      <th>Version added</th>
-      <th>Enabled by default?</th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <th>Nightly</th>
-      <td>124</td>
-      <td>No</td>
-    </tr>
-    <tr>
-      <th>Developer Edition</th>
-      <td>124</td>
-      <td>No</td>
-    </tr>
-    <tr>
-      <th>Beta</th>
-      <td>124</td>
-      <td>No</td>
-    </tr>
-    <tr>
-      <th>Release</th>
-      <td>124</td>
-      <td>No</td>
-    </tr>
-    <tr>
-      <th>Preference name</th>
-      <td colspan="2"><code>javascript.options.experimental.sharedarraybuffer_growable</code></td>
-    </tr>
-  </tbody>
-</table>
-
-### ArrayBuffer is resizable
-
-The {{jsxref("ArrayBuffer")}} can now be resized using the {{jsxref("ArrayBuffer.prototype.resize()")}} method.
-The maximum allowed size of the buffer is specified using the `options.maxByteLength` parameter to the [`ArrayBuffer()` constructor](/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/ArrayBuffer#maxbytelength).
-The {{jsxref("ArrayBuffer.prototype.resizable")}} and {{jsxref("ArrayBuffer.prototype.maxByteLength")}} properties indicate whether the buffer can be resized, and its maximum allowed size, respectively.
-([Firefox bug 1842773](https://bugzil.la/1842773).)
-
-<table>
-  <thead>
-    <tr>
-      <th>Release channel</th>
-      <th>Version added</th>
-      <th>Enabled by default?</th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <th>Nightly</th>
-      <td>124</td>
-      <td>No</td>
-    </tr>
-    <tr>
-      <th>Developer Edition</th>
-      <td>124</td>
-      <td>No</td>
-    </tr>
-    <tr>
-      <th>Beta</th>
-      <td>124</td>
-      <td>No</td>
-    </tr>
-    <tr>
-      <th>Release</th>
-      <td>124</td>
-      <td>No</td>
-    </tr>
-    <tr>
-      <th>Preference name</th>
-      <td colspan="2"><code>javascript.options.experimental.arraybuffer_resizable</code></td>
-    </tr>
-  </tbody>
-</table>
-
 ### Float16Array Typed Arrays
 
 {{jsxref("Float16Array")}} typed arrays are now supported, along with {{jsxref("DataView.prototype.getFloat16()")}} and {{jsxref("DataView.prototype.setFloat16()")}} for reading and setting `Float16Array` values from a {{jsxref("DataView")}}, and the {{jsxref("Math.f16round()")}} static method, which can be used to round numbers to 16 bits.
diff --git a/files/en-us/mozilla/firefox/releases/128/index.md b/files/en-us/mozilla/firefox/releases/128/index.md
index 0f979e2e3109881..afaf645c14fcc53 100644
--- a/files/en-us/mozilla/firefox/releases/128/index.md
+++ b/files/en-us/mozilla/firefox/releases/128/index.md
@@ -27,6 +27,16 @@ This article provides information about the changes in Firefox 128 that affect d
 
 ### JavaScript
 
+- Resizeable {{jsxref("ArrayBuffer")}} and growable {{jsxref("SharedArrayBuffer")}} are now supported, allowing the size of buffers to be changed without having to allocate a new buffer and copy data into it ([Firefox bug 1884150](https://bugzil.la/1884150)).
+  The relevant methods and properties are:
+
+  - Grow {{jsxref("SharedArrayBuffer")}} using the {{jsxref("SharedArrayBuffer.prototype.grow()")}} method.
+    The maximum allowed size of the buffer is specified using the `options.maxByteLength` parameter to the [`SharedArrayBuffer()` constructor](/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer/SharedArrayBuffer#maxbytelength).
+    The {{jsxref("SharedArrayBuffer.prototype.growable")}} and {{jsxref("SharedArrayBuffer.prototype.maxByteLength")}} properties indicate whether the buffer can grow, and its maximum allowed size, respectively.
+  - Resize {{jsxref("ArrayBuffer")}} using the {{jsxref("ArrayBuffer.prototype.resize()")}} method.
+    The maximum allowed size of the buffer is specified using the `options.maxByteLength` parameter to the [`ArrayBuffer()` constructor](/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/ArrayBuffer#maxbytelength).
+    The {{jsxref("ArrayBuffer.prototype.resizable")}} and {{jsxref("ArrayBuffer.prototype.maxByteLength")}} properties indicate whether the buffer can be resized, and its maximum allowed size, respectively.
+
 #### Removals
 
 ### SVG