--- a/mobile/android/components/HelperAppDialog.js
+++ b/mobile/android/components/HelperAppDialog.js
@@ -114,17 +114,17 @@ HelperAppLauncherDialog.prototype = {
       if (!win) {
         // Oops.
         Services.console.logStringMessage("Refusing download, but can't show a toast.");
         return;
       }
 
       Services.console.logStringMessage("Refusing download of non-downloadable file.");
       let bundle = Services.strings.createBundle("chrome://browser/locale/handling.properties");
-      let failedText = bundle.GetStringFromName("protocol.failed");
+      let failedText = bundle.GetStringFromName("download.blocked");
       win.toast.show(failedText, "long");
 
       return;
     }
 
     let bundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
 
     let defaultHandler = new Object();

--- a/mobile/android/locales/en-US/chrome/handling.properties
+++ b/mobile/android/locales/en-US/chrome/handling.properties
@@ -1,7 +1,8 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+download.blocked=Unable to download file
 protocol.failed=Couldn't find an app to open this link
 # A very short string shown in the button toast when no application can open the url
 protocol.toast.search=Search