--- a/browser/base/content/test/performance/browser_preferences_usage.js
+++ b/browser/base/content/test/performance/browser_preferences_usage.js
@@ -103,17 +103,17 @@ add_task(async function startup() {
     },
 
     // Disabling screenshots in the default test profile triggers some
     // work in the chrome registry that reads this pref.  This can be removed
     // when bootstrapped extensions are gone, or even when screenshots
     // moves away from bootstrap (bug 1422437)
     "chrome.override_package.global": {
       min: 0,
-      max: 50,
+      max: 70,
     },
   };
 
   let startupRecorder = Cc["@mozilla.org/test/startuprecorder;1"].getService().wrappedJSObject;
   await startupRecorder.done;
 
   ok(startupRecorder.data.prefStats, "startupRecorder has prefStats");