diff --git a/src/browser/themes/shared/zen-icons/icons.css b/src/browser/themes/shared/zen-icons/icons.css
index 716d0d675..0015993a2 100644
--- a/src/browser/themes/shared/zen-icons/icons.css
+++ b/src/browser/themes/shared/zen-icons/icons.css
@@ -342,7 +342,7 @@
 }
 
 #identity-popup[connection='chrome'] .identity-popup-security-connection {
-  list-style-image: url('firefox.svg') !important;
+  filter: grayscale(1);
 }
 
 #identity-popup[connection='file'] .identity-popup-security-connection {