--- a/browser/base/content/test/performance/browser_startup_images.js
+++ b/browser/base/content/test/performance/browser_startup_images.js
@@ -56,17 +56,17 @@ const whitelist = [
     file: "resource://gre-resources/broken-image.png",
     platforms: ["win", "macosx"],
     intermittentNotLoaded: ["win", "macosx"],
   },
 
   {
     file: "chrome://browser/skin/chevron.svg",
     platforms: ["win", "linux", "macosx"],
-    intermittentShown: ["win"],
+    intermittentShown: ["win", "linux"],
   },
 
   {
     file: "chrome://global/skin/icons/resizer.png",
     platforms: ["win"],
   },
 
   {