--- a/browser/themes/windows/browser.css
+++ b/browser/themes/windows/browser.css
@@ -887,16 +887,17 @@ toolbarbutton[sdk-button="true"][cui-are
   transition-duration: 250ms !important;
 }
 
 #back-button:not([disabled="true"]):not([open="true"]):not(:active):hover > .toolbarbutton-icon {
   background-color: hsla(210,4%,10%,.08) !important;
   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;
 }
 
 %ifdef WINDOWS_AERO
 @media (-moz-os-version: windows-vista),
        (-moz-os-version: windows-win7) {