From 77d2add90e0deb73cb80fe65a78802f796dfd611 Mon Sep 17 00:00:00 2001
From: matsuhav <28914976+matsuhav@users.noreply.github.com>
Date: Mon, 1 Oct 2018 09:46:12 +0900
Subject: [PATCH] getInterface(Ci.nsIDOMWindowUtils) doesn't work.

---
 extension/lib/utils.coffee | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/extension/lib/utils.coffee b/extension/lib/utils.coffee
index 49f749e..e20b521 100644
--- a/extension/lib/utils.coffee
+++ b/extension/lib/utils.coffee
@@ -333,9 +333,7 @@ simulateMouseEvents = (element, sequence, browserOffset) ->
       # The last `true` below marks the event as trusted, which some APIs
       # require, such as `requestFullscreen()`.
       # (`element.dispatchEvent(mouseEvent)` is not able to do this.)
-      window
-        .QueryInterface(Ci.nsIInterfaceRequestor)
-        .getInterface(Ci.nsIDOMWindowUtils)
+      window.windowUtils
         .dispatchDOMEventViaPresShell(element, mouseEvent, true)
 
   return
-- 
2.39.3