diff --git a/addon-sdk/source/lib/sdk/input/browser.js b/addon-sdk/source/lib/sdk/input/browser.js
index 8118b73cbf2a..daea875bffbc 100644
--- a/addon-sdk/source/lib/sdk/input/browser.js
+++ b/addon-sdk/source/lib/sdk/input/browser.js
@@ -17,7 +17,7 @@ const { Sequence, seq, filter, object, pairs } = require("../util/sequence");
 // When iterated over belowe sequences items will represent
 // state of windows at the time of iteration.
 const opened = seq(function*() {
-  const items = windows("navigator:browser", {includePrivates: true});
+  const items = windows("navigator:browser", {includePrivate: true});
   for (let item of items) {
       yield [getOuterId(item), item];
   }
diff --git a/addon-sdk/source/lib/sdk/ui/toolbar/view.js b/addon-sdk/source/lib/sdk/ui/toolbar/view.js
index 1605ab12a8bd..4ef0c3d46571 100644
--- a/addon-sdk/source/lib/sdk/ui/toolbar/view.js
+++ b/addon-sdk/source/lib/sdk/ui/toolbar/view.js
@@ -23,6 +23,7 @@ const { curry, flip } = require("../../lang/functional");
 const { patch, diff } = require("diffpatcher/index");
 const prefs = require("../../preferences/service");
 const { getByOuterId } = require("../../window/utils");
+const { ignoreWindow } = require('../../private-browsing/utils');
 
 const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
 const PREF_ROOT = "extensions.sdk-toolbar-collapsed.";
@@ -85,7 +86,10 @@ const attributesChanged = mutations => {
 // Utility function creates `toolbar` with a "close" button and returns
 // it back. In addition it set's up a listener and observer to communicate
 // state changes.
-const addView = curry((options, {document}) => {
+const addView = curry((options, {document, window}) => {
+  if (ignoreWindow(window))
+    return;
+
   let view = document.createElementNS(XUL_NS, "toolbar");
   view.setAttribute("id", options.id);
   view.setAttribute("collapsed", options.collapsed);
diff --git a/addon-sdk/source/test/test-ui-toolbar.js b/addon-sdk/source/test/test-ui-toolbar.js
index 32d21235efa0..30217b3006c9 100644
--- a/addon-sdk/source/test/test-ui-toolbar.js
+++ b/addon-sdk/source/test/test-ui-toolbar.js
@@ -492,4 +492,20 @@ exports["test button are attached to toolbar"] = function*(assert) {
   yield cleanUI();
 };
 
+exports["test toolbar are not in private windows"] = function*(assert) {
+  const w = open(null, {features: {toolbar: true, private: true}});
+
+  yield ready(w);
+
+  const t = new Toolbar({title: "foo"});
+
+  yield wait(t, "attach");
+
+  assert.ok(!isAttached(t), "toolbar wasn't actually attached");
+
+  t.destroy();
+
+  yield cleanUI();
+}
+
 require("sdk/test").run(module.exports);