diff --git a/css/leptonChrome.css b/css/leptonChrome.css
index 58fd82b6..aad422b3 100644
--- a/css/leptonChrome.css
+++ b/css/leptonChrome.css
@@ -722,7 +722,8 @@
         #appMenu-zoomReduce-button2,
         #appMenu-zoomReset-button2,
         #appMenu-zoomEnlarge-button2,
-        #appMenu-fullscreen-button2
+        #appMenu-fullscreen-button2,
+        .unified-extensions-item-menu-button
       ):is(:hover),
     :root[lwt-default-theme-in-dark-mode]
       toolbarbutton.subviewbutton:not(
@@ -733,7 +734,8 @@
         #appMenu-zoomReduce-button2,
         #appMenu-zoomReset-button2,
         #appMenu-zoomEnlarge-button2,
-        #appMenu-fullscreen-button2
+        #appMenu-fullscreen-button2,
+        .unified-extensions-item-menu-button
       ):is(:hover) {
       background-color: var(--win-hover-bgcolor) !important;
     }
@@ -14789,7 +14791,8 @@
       #appMenu-zoomReduce-button2,
       #appMenu-zoomReset-button2,
       #appMenu-zoomEnlarge-button2,
-      #appMenu-fullscreen-button2
+      #appMenu-fullscreen-button2,
+      .unified-extensions-item-menu-button
     ):is(:hover),
   :root[lwt-default-theme-in-dark-mode]
     toolbarbutton.subviewbutton:not(
@@ -14800,7 +14803,8 @@
       #appMenu-zoomReduce-button2,
       #appMenu-zoomReset-button2,
       #appMenu-zoomEnlarge-button2,
-      #appMenu-fullscreen-button2
+      #appMenu-fullscreen-button2,
+      .unified-extensions-item-menu-button
     ):is(:hover) {
     background-color: var(--win-hover-bgcolor) !important;
   }
diff --git a/css/leptonChromeESR.css b/css/leptonChromeESR.css
index be4822b9..6fdafa9f 100644
--- a/css/leptonChromeESR.css
+++ b/css/leptonChromeESR.css
@@ -941,7 +941,8 @@
         #appMenu-zoomReduce-button2,
         #appMenu-zoomReset-button2,
         #appMenu-zoomEnlarge-button2,
-        #appMenu-fullscreen-button2
+        #appMenu-fullscreen-button2,
+        .unified-extensions-item-menu-button
       ):is(:hover),
     :root[lwt-default-theme-in-dark-mode]
       toolbarbutton.subviewbutton:not(
@@ -952,7 +953,8 @@
         #appMenu-zoomReduce-button2,
         #appMenu-zoomReset-button2,
         #appMenu-zoomEnlarge-button2,
-        #appMenu-fullscreen-button2
+        #appMenu-fullscreen-button2,
+        .unified-extensions-item-menu-button
       ):is(:hover) {
       background-color: var(--win-hover-bgcolor) !important;
     }
diff --git a/src/theme/system_default_theme/_win10.scss b/src/theme/system_default_theme/_win10.scss
index a1f7c333..63e121c2 100644
--- a/src/theme/system_default_theme/_win10.scss
+++ b/src/theme/system_default_theme/_win10.scss
@@ -322,7 +322,7 @@
   }
 
   $panelZoomButtons: "#appMenu-fxa-label2, #appMenu-zoomReduce-button2, #appMenu-zoomReset-button2, #appMenu-zoomEnlarge-button2, #appMenu-fullscreen-button2";
-  #{selector.nest(system-default-theme(), "toolbarbutton.subviewbutton:not([disabled], [open], :active, #{$panelZoomButtons}):is(:hover)")} {
+  #{selector.nest(system-default-theme(), "toolbarbutton.subviewbutton:not([disabled], [open], :active, #{$panelZoomButtons}, .unified-extensions-item-menu-button):is(:hover)")} {
     background-color: var(--win-hover-bgcolor) !important;
   }
   #{selector.nest(system-default-theme(), "toolbarbutton.subviewbutton:not([disabled], #{$panelZoomButtons}):is([open], :hover:active)")} {