diff --git a/browser/themes/windows/browser.css b/browser/themes/windows/browser.css
index 9533bbe2fdf2..6c830dc28d5f 100644
--- a/browser/themes/windows/browser.css
+++ b/browser/themes/windows/browser.css
@@ -892,6 +892,7 @@ toolbarbutton[sdk-button="true"][cui-areatype="toolbar"] > .toolbarbutton-icon {
   box-shadow: none !important;
 }
 
+#back-button:not([disabled="true"]):hover:active > .toolbarbutton-icon,
 #back-button[open="true"] > .toolbarbutton-icon {
   background-color: hsla(210,4%,10%,.12) !important;
   box-shadow: 0 1px 0 0 hsla(210,80%,20%,.1) inset !important;