diff --git a/toolkit/mozapps/downloads/tests/chrome/test_destinationURI_annotation.xul b/toolkit/mozapps/downloads/tests/chrome/test_destinationURI_annotation.xul
index 2ea90ed9f4c1..45eab5a88a39 100644
--- a/toolkit/mozapps/downloads/tests/chrome/test_destinationURI_annotation.xul
+++ b/toolkit/mozapps/downloads/tests/chrome/test_destinationURI_annotation.xul
@@ -115,6 +115,13 @@ let downloadListener = {
 };
 
 function init() {
+  var dmui = getDMUI();
+  if (!dmui) {
+    todo(false, "skip test for toolkit download manager UI");
+    SimpleTest.finish();
+    return;
+  }
+
   // Ensure that the download manager callbacks always use the window UI instead
   // of the panel in the browser's window.
   Services.prefs.setBoolPref("browser.download.useToolkitUI", true);
diff --git a/toolkit/mozapps/downloads/tests/chrome/test_unknownContentType_dialog_layout.xul b/toolkit/mozapps/downloads/tests/chrome/test_unknownContentType_dialog_layout.xul
index 59181b734cb2..421c39580af9 100644
--- a/toolkit/mozapps/downloads/tests/chrome/test_unknownContentType_dialog_layout.xul
+++ b/toolkit/mozapps/downloads/tests/chrome/test_unknownContentType_dialog_layout.xul
@@ -68,6 +68,13 @@ let windowObserver = {
 };
 
 function init() {
+  var dmui = getDMUI();
+  if (!dmui) {
+    todo(false, "skip test for toolkit download manager UI");
+    SimpleTest.finish();
+    return;
+  }
+
   ww.registerNotification(windowObserver);
   loadNextTest();
 }
diff --git a/toolkit/mozapps/downloads/tests/chrome/utils.js b/toolkit/mozapps/downloads/tests/chrome/utils.js
index b24484878ef7..f56949e26b90 100644
--- a/toolkit/mozapps/downloads/tests/chrome/utils.js
+++ b/toolkit/mozapps/downloads/tests/chrome/utils.js
@@ -10,6 +10,8 @@ const Cc = Components.classes;
 const Ci = Components.interfaces;
 const Cr = Components.results;
 
+Components.utils.import("resource://gre/modules/Services.jsm");
+
 /**
  * Returns the toolkit implementation of the download manager UI service.
  * If the toolkit implementation of the service can't be found (e.g. because
@@ -20,6 +22,11 @@ const Cr = Components.results;
  */
 function getDMUI()
 {
+  try {
+    if (Services.prefs.getBoolPref("browser.download.useJSTransfer")) {
+      return false;
+    }
+  } catch (ex) { }
   if (Components.classesByID["{7dfdf0d1-aff6-4a34-bad1-d0fe74601642}"])
     return Components.classesByID["{7dfdf0d1-aff6-4a34-bad1-d0fe74601642}"].
            getService(Ci.nsIDownloadManagerUI);
@@ -144,7 +151,6 @@ function setCleanState()
  */
 function waitForClearHistory(aCallback) {
   Components.utils.import("resource://gre/modules/PlacesUtils.jsm");
-  Components.utils.import("resource://gre/modules/Services.jsm");
   Services.obs.addObserver(function observeClearHistory(aSubject, aTopic) {
     Services.obs.removeObserver(observeClearHistory, aTopic);
     aCallback();