1 files changed, 1 insertions, 1 deletions
diff --git a/toolkit/components/startup/tests/browser/browser_bug511456.js b/toolkit/components/startup/tests/browser/browser_bug511456.js
index c080a1596f..04152a6103 100644
--- a/toolkit/components/startup/tests/browser/browser_bug511456.js
+++ b/toolkit/components/startup/tests/browser/browser_bug511456.js
@@ -45,7 +45,7 @@ function test() {
         win2.close();
 
         // Leave the page the second time.
-        waitForOnBeforeUnloadDialog(browser, (btnLeave, btnStay) => {
+        waitForOnBeforeUnloadDialog(browser, btnLeave => {
           btnLeave.click();
         });