--- a/browser/extensions/onboarding/content/onboarding.css
+++ b/browser/extensions/onboarding/content/onboarding.css
@@ -526,17 +526,17 @@ a#onboarding-tour-screenshots-button:vis
   transform: translate(-50%, -50%);
 }
 
 #onboarding-notification-body {
   width: 500px;
   margin: 0 18px;
   color: #0c0c0d;
   display: inline-block;
-  max-height: 100%;
+  max-height: 120px;
   overflow: auto;
   padding: 15px 0;
   box-sizing: border-box;
 }
 
 #onboarding-notification-body * {
   font-size: 12px;
   font-weight: normal;