1 files changed, 1 insertions, 1 deletions
diff --git a/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_addons_temporary_install_path.js b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_addons_temporary_install_path.js
index a6f9fde0c1..da2596ef53 100644
--- a/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_addons_temporary_install_path.js
+++ b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_addons_temporary_install_path.js
@@ -45,7 +45,7 @@ add_task(async function testPreferenceRetrievedWhenInstallingExtension() {
   await selectThisFirefoxPage(document, window.AboutDebugging.store);
 
   const MockFilePicker = SpecialPowers.MockFilePicker;
-  MockFilePicker.init(window);
+  MockFilePicker.init(window.browsingContext);
   const onFilePickerShown = new Promise(resolve => {
     MockFilePicker.showCallback = fp => {
       resolve(fp);