--- a/browser/components/downloads/DownloadsCommon.jsm
+++ b/browser/components/downloads/DownloadsCommon.jsm
@@ -223,17 +223,17 @@ this.DownloadsCommon = {
   /**
    * Get access to one of the DownloadsData or PrivateDownloadsData objects,
    * depending on the privacy status of the window in question.
    *
    * @param aWindow
    *        The browser window which owns the download button.
    */
   getData(aWindow) {
-    if (PrivateBrowsingUtils.isWindowPrivate(aWindow)) {
+    if (PrivateBrowsingUtils.isContentWindowPrivate(aWindow)) {
       return PrivateDownloadsData;
     } else {
       return DownloadsData;
     }
   },
 
   /**
    * Initializes the Downloads back-end and starts receiving events for both the
@@ -245,17 +245,17 @@ this.DownloadsCommon = {
   },
 
   /**
    * Get access to one of the DownloadsIndicatorData or
    * PrivateDownloadsIndicatorData objects, depending on the privacy status of
    * the window in question.
    */
   getIndicatorData(aWindow) {
-    if (PrivateBrowsingUtils.isWindowPrivate(aWindow)) {
+    if (PrivateBrowsingUtils.isContentWindowPrivate(aWindow)) {
       return PrivateDownloadsIndicatorData;
     } else {
       return DownloadsIndicatorData;
     }
   },
 
   /**
    * Returns a reference to the DownloadsSummaryData singleton - creating one
@@ -263,17 +263,17 @@ this.DownloadsCommon = {
    *
    * @param aWindow
    *        The browser window which owns the download button.
    * @param aNumToExclude
    *        The number of items on the top of the downloads list to exclude
    *        from the summary.
    */
   getSummary(aWindow, aNumToExclude) {
-    if (PrivateBrowsingUtils.isWindowPrivate(aWindow)) {
+    if (PrivateBrowsingUtils.isContentWindowPrivate(aWindow)) {
       if (this._privateSummary) {
         return this._privateSummary;
       }
       return this._privateSummary = new DownloadsSummaryData(true, aNumToExclude);
     } else {
       if (this._summary) {
         return this._summary;
       }

--- a/browser/components/downloads/content/contentAreaDownloadsView.js
+++ b/browser/components/downloads/content/contentAreaDownloadsView.js
@@ -3,13 +3,13 @@
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 Components.utils.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
 
 let ContentAreaDownloadsView = {
   init() {
     let view = new DownloadsPlacesView(document.getElementById("downloadsRichListBox"));
     // Do not display the Places downloads in private windows
-    if (!PrivateBrowsingUtils.isWindowPrivate(window)) {
+    if (!PrivateBrowsingUtils.isContentWindowPrivate(window)) {
       view.place = "place:transition=7&sort=4";
     }
   },
 };