From 7de9e05fca8ec43f1bd635fe307dbb8747011d8a Mon Sep 17 00:00:00 2001
From: Paolo Amadini <paolo.mozmail@amadzone.org>
Date: Tue, 26 Jun 2018 15:27:36 +0100
Subject: [PATCH] Bug 1465458 - Fix launching downloads without a file
 extension on Windows. r=mak

MozReview-Commit-ID: 6VYjHM46gZx

--HG--
extra : rebase_source : 56e45713138b32adf7f36d9ae65c264e1976be47
---
 toolkit/components/downloads/DownloadIntegration.jsm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/toolkit/components/downloads/DownloadIntegration.jsm b/toolkit/components/downloads/DownloadIntegration.jsm
index 1649eb71ed3e..ba240f4d1ed2 100644
--- a/toolkit/components/downloads/DownloadIntegration.jsm
+++ b/toolkit/components/downloads/DownloadIntegration.jsm
@@ -595,7 +595,7 @@ var DownloadIntegration = {
     }
 
     let isWindowsExe = AppConstants.platform == "win" &&
-      fileExtension.toLowerCase() == "exe";
+      fileExtension && fileExtension.toLowerCase() == "exe";
 
     // Ask for confirmation if the file is executable, except for .exe on
     // Windows where the operating system will show the prompt based on the