From 4faef57c60a54676fd27b3d0ff42747b0b9b6487 Mon Sep 17 00:00:00 2001
From: mrmr1993
Date: Wed, 25 Oct 2017 16:52:11 +0100
Subject: FF: Workaround bug 1408996 in focusInput's focus listener

---
 content_scripts/vimium_frontend.coffee | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/content_scripts/vimium_frontend.coffee b/content_scripts/vimium_frontend.coffee
index 0beb2110..88ec134a 100644
--- a/content_scripts/vimium_frontend.coffee
+++ b/content_scripts/vimium_frontend.coffee
@@ -419,7 +419,10 @@ extend root,
     # Track the most recently focused input element.
     recentlyFocusedElement = null
     window.addEventListener "focus",
-      forTrusted (event) -> recentlyFocusedElement = event.target if DomUtils.isEditable event.target
+      forTrusted (event) ->
+        DomUtils = window.DomUtils ? root.DomUtils # Workaround FF bug 1408996.
+        if DomUtils.isEditable event.target
+          recentlyFocusedElement = event.target
     , true
 
     (count) ->
-- 
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