diff --git a/toolkit/mozapps/extensions/content/aboutaddons.html b/toolkit/mozapps/extensions/content/aboutaddons.html
index 67808c799aca92a0c71731ab0c345bb478522368..5ddcbcecd43b2b04eb4c0e5b86eebd69b142a5a3 100644
--- a/toolkit/mozapps/extensions/content/aboutaddons.html
+++ b/toolkit/mozapps/extensions/content/aboutaddons.html
@@ -82,6 +82,7 @@
       type="module"
       src="chrome://global/content/elements/moz-five-star.mjs"
     ></script>
+    <script src="chrome://browser/content/zenThemeModifier.js"></script>
   </head>
   <body>
     <drag-drop-addon-installer></drag-drop-addon-installer>
