--- a/mobile/android/base/java/org/mozilla/gecko/promotion/AddToHomeScreenPromotion.java
+++ b/mobile/android/base/java/org/mozilla/gecko/promotion/AddToHomeScreenPromotion.java
@@ -129,16 +129,21 @@ public class AddToHomeScreenPromotion ex
             // We only ever want to show this promotion for the current tab.
             return;
         }
 
         if (Tabs.TabEvents.LOADED != msg) {
             return;
         }
 
+        if (tab.isPrivate()) {
+            // Never show the prompt for private browsing tabs.
+            return;
+        }
+
         if (!isInForeground) {
             // We only want to show this prompt if this tab is in the foreground and not on top
             // of the tabs tray.
             return;
         }
 
         ThreadUtils.postToBackgroundThread(new Runnable() {
             @Override