diff --git a/userChrome.css b/userChrome.css
index bbf6bb7..f37ff85 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -806,6 +806,11 @@
     display: flex !important;
   }
 
+  /* Rounding */
+  #main-menubar > menu {
+    border-radius: 4px;
+  }
+
   /* Menubar item padding */
   :root {
     --global-menubar-padding: 2px;