diff --git a/css/80_app.css b/css/80_app.css
index 3f5aa4942..d594e4bf8 100644
--- a/css/80_app.css
+++ b/css/80_app.css
@@ -5777,6 +5777,12 @@ li.hide + li.version .badge .tooltip .popover-arrow {
 body {
     scrollbar-width: 10px;
 }
+/* Firefox */
+@-moz-document url-prefix() {
+	* {
+	    scrollbar-width: thin;
+	}
+}
 
 
 /* Intro walkthrough