From 7f3b3d3e90c207d279eb3645d2742a3dfd730823 Mon Sep 17 00:00:00 2001
From: Frank-Rainer Grahl <frgrahl@gmx.net>
Date: Wed, 18 Jul 2018 14:01:47 +0200
Subject: [PATCH] Bug 1475524 - Port Bug 1433037 [taskbar preview's favicon
 appears blank]. r=IanN

---
 suite/modules/WindowsPreviewPerTab.jsm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/suite/modules/WindowsPreviewPerTab.jsm b/suite/modules/WindowsPreviewPerTab.jsm
index 1100da8ec6..f8aeee72d6 100644
--- a/suite/modules/WindowsPreviewPerTab.jsm
+++ b/suite/modules/WindowsPreviewPerTab.jsm
@@ -85,7 +85,7 @@ function _imageFromURI(uri, privateMode, callback) {
     if (!Components.isSuccessCode(resultCode))
       return;
     try {
-      let out_img = imgTools.decodeImage(inputStream, channel.contentType);
+      let out_img = imgTools.decodeImageAsync(inputStream, channel.contentType);
       callback(out_img);
     } catch (e) {
       // We failed, so use the default favicon (only if this wasn't the default