--- a/browser/base/content/test/general/browser_tabs_owner.js
+++ b/browser/base/content/test/general/browser_tabs_owner.js
@@ -1,8 +1,15 @@
+///////////////////
+//
+// Whitelisting this test.
+// As part of bug 1077403, the leaking uncaught rejection should be fixed.
+//
+thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: gBrowser._finalizeTabSwitch is not a function");
+
 ///////////////////
 //
 // Whitelisting this test.
 // As part of bug 1077403, the leaking uncaught rejection should be fixed.
 //
 thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: gBrowser._finalizeTabSwitch is not a function");
 
 function test() {