diff --git a/toolkit/components/thumbnails/content/backgroundPageThumbsContent.js b/toolkit/components/thumbnails/content/backgroundPageThumbsContent.js
index 9c14466c5553..9683392f17c8 100644
--- a/toolkit/components/thumbnails/content/backgroundPageThumbsContent.js
+++ b/toolkit/components/thumbnails/content/backgroundPageThumbsContent.js
@@ -46,6 +46,7 @@ const backgroundPageThumbsContent = {
                        Ci.nsIWebNavigation.LOAD_FLAGS_BYPASS_HISTORY;
     docShell.defaultLoadFlags = defaultFlags;
     docShell.sandboxFlags |= SANDBOXED_AUXILIARY_NAVIGATION;
+    docShell.useTrackingProtection = true;
 
     addMessageListener("BackgroundPageThumbs:capture",
                        this._onCapture.bind(this));