diff --git a/browser/themes/shared/controlcenter/panel.inc.css b/browser/themes/shared/controlcenter/panel.inc.css
index afb66062a583..045b22b7b74c 100644
--- a/browser/themes/shared/controlcenter/panel.inc.css
+++ b/browser/themes/shared/controlcenter/panel.inc.css
@@ -307,7 +307,8 @@
   fill-opacity: 1;
 }
 
-#protections-popup-info-button:hover {
+#protections-popup-info-button:hover,
+#protections-popup-info-button:-moz-focusring {
   outline-color: rgba(12, 12, 13, 0.2);
   background-color: rgba(12, 12, 13, 0.2);
 }