diff --git a/chrome/global/variables.css b/chrome/global/variables.css
index eec7b71..a5b5ebf 100644
--- a/chrome/global/variables.css
+++ b/chrome/global/variables.css
@@ -54,6 +54,7 @@
 	--lwt-toolbar-field-border-color: #ccc !important;
 
 	--tab-line-col: #0078d4 !important;
+	--toolbar-field-focus-border-color: #0078d4a0 !important;
 }
 
 /* don't bother with sidebar in light mode */
@@ -116,6 +117,7 @@
 	--lwt-toolbar-field-border-color: #656565 !important;
 
 	--tab-line-col: #4C98D1 !important;
+	--toolbar-field-focus-border-color: #4c97d1a0 !important;
 }
 
 :-moz-any(#sidebar-box, #sidebar)