diff --git a/src/patterns/04-components/menu/menu--horizontal/_menu--horizontal.scss b/src/patterns/04-components/menu/menu--horizontal/_menu--horizontal.scss
index 153085e514af6d1334ce56315eda801879295b9f..b00b68fc5ec0ed21e2de7ee55c07d451a3ed0d3a 100644
--- a/src/patterns/04-components/menu/menu--horizontal/_menu--horizontal.scss
+++ b/src/patterns/04-components/menu/menu--horizontal/_menu--horizontal.scss
@@ -588,10 +588,14 @@ $menu-horizontal-drop-bg: #f7f7f7;
           /* for Chrome and Edge Brave Opera */
           break-inside: avoid;
           /* for Firefox */
-          display: inline-grid;
           page-break-inside: avoid;
         }
       }
     }
   }
 }
+@-moz-document url-prefix() {
+  .uw-horizontal-nav--menu .menu .submenu-active .menu__subnav .menu__item.sub-1{
+    display: inline-grid !important;
+  }
+}