diff --git a/css/leptonChrome.css b/css/leptonChrome.css
index 2fe570c..a32c205 100644
--- a/css/leptonChrome.css
+++ b/css/leptonChrome.css
@@ -1293,7 +1293,8 @@
       --panel-background: var(--menu-background-color) !important;
       --panel-border-color: var(--menu-border-color) !important;
     }
-    html#main-window menupopup:not(.in-menulist) menuseparator {
+    html#main-window menupopup:not(.in-menulist):not([placespopup]) menuseparator,
+    html#main-window menupopup:not(.in-menulist)[placespopup] menuseparator::before {
       border-top: 1px solid var(--menu-border-color) !important;
     }
     html#main-window menupopup:not(.in-menulist) menu[disabled="true"],
diff --git a/src/theme/_fully_color.scss b/src/theme/_fully_color.scss
index 30af148..ccbae21 100644
--- a/src/theme/_fully_color.scss
+++ b/src/theme/_fully_color.scss
@@ -29,7 +29,9 @@ html#main-window menupopup:not(.in-menulist) {
       --panel-background: var(--menu-background-color) !important;
       --panel-border-color: var(--menu-border-color) !important;
 
-      menuseparator {
+      &:not([placespopup]) menuseparator,
+      &[placespopup] menuseparator::before {
+        // toolbarbutton menupopup[placespopup] menuseparator::before
         border-top: 1px solid var(--menu-border-color) !important;
       }