diff --git a/browser/themes/shared/customizableui/panelUIOverlay.inc.css b/browser/themes/shared/customizableui/panelUIOverlay.inc.css
index d100712215c7..34bc7ede9a78 100644
--- a/browser/themes/shared/customizableui/panelUIOverlay.inc.css
+++ b/browser/themes/shared/customizableui/panelUIOverlay.inc.css
@@ -1057,7 +1057,8 @@ panelview .toolbarbutton-1,
 }
 
 panelview .toolbarbutton-1,
-.widget-overflow-list .toolbarbutton-1 {
+.widget-overflow-list .toolbarbutton-1:not(:first-child),
+.widget-overflow-list .toolbaritem-combined-buttons:not(:first-child) {
   margin-top: 6px;
 }