--- a/mobile/android/base/java/org/mozilla/gecko/promotion/AddToHomeScreenPromotion.java
+++ b/mobile/android/base/java/org/mozilla/gecko/promotion/AddToHomeScreenPromotion.java
@@ -19,16 +19,17 @@ import org.mozilla.gecko.AboutPages;
 import org.mozilla.gecko.BrowserApp;
 import org.mozilla.gecko.BrowserAppDelegate;
 import org.mozilla.gecko.GeckoProfile;
 import org.mozilla.gecko.Tab;
 import org.mozilla.gecko.Tabs;
 import org.mozilla.gecko.db.BrowserContract;
 import org.mozilla.gecko.db.BrowserDB;
 import org.mozilla.gecko.db.UrlAnnotations;
+import org.mozilla.gecko.tabs.TabsPanel;
 import org.mozilla.gecko.util.Experiments;
 import org.mozilla.gecko.util.ThreadUtils;
 
 import java.lang.ref.WeakReference;
 
 import ch.boye.httpclientandroidlib.util.TextUtils;
 
 /**
@@ -48,37 +49,49 @@ public class AddToHomeScreenPromotion ex
     private static final String LOGTAG = "GeckoPromoteShortcut";
 
     private static final String EXPERIMENT_MINIMUM_TOTAL_VISITS = "minimumTotalVisits";
     private static final String EXPERIMENT_LAST_VISIT_MINIMUM_AGE = "lastVisitMinimumAgeMs";
     private static final String EXPERIMENT_LAST_VISIT_MAXIMUM_AGE = "lastVisitMaximumAgeMs";
 
     private WeakReference<Activity> activityReference;
     private boolean isEnabled;
+    private boolean isInForeground;
     private int minimumVisits;
     private int lastVisitMinimumAgeMs;
     private int lastVisitMaximumAgeMs;
 
     @Override
     public void onCreate(BrowserApp browserApp, Bundle savedInstanceState) {
         activityReference = new WeakReference<Activity>(browserApp);
+        isInForeground = true;
 
         initializeExperiment(browserApp);
     }
 
     @Override
     public void onResume(BrowserApp browserApp) {
         Tabs.registerOnTabsChangedListener(this);
     }
 
     @Override
     public void onPause(BrowserApp browserApp) {
         Tabs.unregisterOnTabsChangedListener(this);
     }
 
+    @Override
+    public void onTabsTrayShown(BrowserApp browserApp, TabsPanel tabsPanel) {
+        isInForeground = false;
+    }
+
+    @Override
+    public void onTabsTrayHidden(BrowserApp browserApp, TabsPanel tabsPanel) {
+        isInForeground = true;
+    }
+
     private void initializeExperiment(Context context) {
         if (!SwitchBoard.isInExperiment(context, Experiments.PROMOTE_ADD_TO_HOMESCREEN)) {
             Log.v(LOGTAG, "Experiment not enabled");
             // Experiment is not enabled. No need to try to read values.
             return;
         }
 
         JSONObject values = SwitchBoard.getExperimentValuesFromJson(context, Experiments.PROMOTE_ADD_TO_HOMESCREEN);
@@ -112,24 +125,32 @@ public class AddToHomeScreenPromotion ex
             return;
         }
 
         if (!Tabs.getInstance().isSelectedTab(tab)) {
             // We only ever want to show this promotion for the current tab.
             return;
         }
 
-        if (Tabs.TabEvents.LOADED == msg) {
-            ThreadUtils.postToBackgroundThread(new Runnable() {
-                @Override
-                public void run() {
-                    maybeShowPromotionForUrl(tab.getURL(), tab.getTitle());
-                }
-            });
+        if (Tabs.TabEvents.LOADED != msg) {
+            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
+            public void run() {
+                maybeShowPromotionForUrl(tab.getURL(), tab.getTitle());
+            }
+        });
     }
 
     private void maybeShowPromotionForUrl(String url, String title) {
         if (!isEnabled) {
             return;
         }
 
         final Context context = activityReference.get();