diff --git a/userChrome.css b/userChrome.css
index b2faa1a..2ae5f69 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -41,7 +41,7 @@
     /* Make the tab close button smaller */
     &:not([expanded]) {
       & .tab-close-button {
-        --icon-size: 14px !important;
+        --icon-size: 12px !important;
         top: 2px !important;
         inset-inline-start: 2px !important;
       }