1 files changed, 1 insertions, 1 deletions
diff --git a/toolkit/content/tests/browser/browser_default_audio_filename.js b/toolkit/content/tests/browser/browser_default_audio_filename.js
index c32dda6878..2732c0e434 100644
--- a/toolkit/content/tests/browser/browser_default_audio_filename.js
+++ b/toolkit/content/tests/browser/browser_default_audio_filename.js
@@ -2,7 +2,7 @@
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
 var MockFilePicker = SpecialPowers.MockFilePicker;
-MockFilePicker.init(window);
+MockFilePicker.init(window.browsingContext);
 registerCleanupFunction(function () {
   MockFilePicker.cleanup();
 });