diff --git a/mobile/android/base/GeckoApp.java b/mobile/android/base/GeckoApp.java
index 213aa947b77a..13bde1fd2809 100644
--- a/mobile/android/base/GeckoApp.java
+++ b/mobile/android/base/GeckoApp.java
@@ -1725,7 +1725,35 @@ private void initialize() {
             passedUri = "about:empty";
         }
 
-        sGeckoThread = new GeckoThread(intent, passedUri, mRestoreMode);
+        if (sGeckoThread == null) {
+            sGeckoThread = new GeckoThread(intent, passedUri, mRestoreMode);
+        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
+            AlertDialog.Builder builder = new AlertDialog.Builder(this);
+            builder.setTitle(R.string.ics_dumbness_title);
+            builder.setMessage(R.string.ics_dumbness_message);
+            builder.setPositiveButton(R.string.ics_dumbness_ok, new DialogInterface.OnClickListener() {
+                public void onClick(DialogInterface dialog, int which) {
+                    final String ACTION = "android.intent.action.MAIN";
+                    final String PACKAGE = "com.android.settings";
+                    final String CLASS = PACKAGE + ".DevelopmentSettings";
+                    Intent intent = new Intent(ACTION);
+                    intent.setComponent(new ComponentName(PACKAGE, CLASS));
+                    startActivity(intent);
+                }
+            });
+            builder.setNegativeButton(R.string.button_cancel, new DialogInterface.OnClickListener() {
+                public void onClick(DialogInterface dialog, int which) {
+                }
+            });
+            AlertDialog dialog = builder.create();
+            dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
+                public void onDismiss(DialogInterface dialog) {
+                    System.exit(0);
+                }
+            });
+            dialog.show();
+        }
+
         if (!ACTION_DEBUG.equals(action) &&
             checkAndSetLaunchState(LaunchState.Launching, LaunchState.Launched)) {
             sGeckoThread.start();
diff --git a/mobile/android/base/locales/en-US/android_strings.dtd b/mobile/android/base/locales/en-US/android_strings.dtd
index 9f0132726d4f..d01257eb0476 100644
--- a/mobile/android/base/locales/en-US/android_strings.dtd
+++ b/mobile/android/base/locales/en-US/android_strings.dtd
@@ -125,3 +125,7 @@
 <!ENTITY filepicker_audio_title "Choose or record a sound">
 <!ENTITY filepicker_image_title "Choose or take a picture">
 <!ENTITY filepicker_video_title "Choose or record a video">
+
+<!ENTITY ics_dumbness_title "There\'s a Problem">
+<!ENTITY ics_dumbness_message "\&quot;Don\'t keep activities\&quot; is turned on. Please turn it off in Settings > Developer options.">
+<!ENTITY ics_dumbness_ok "Settings">
diff --git a/mobile/android/base/strings.xml.in b/mobile/android/base/strings.xml.in
index c5f2785c3d46..0cb81531ccaa 100644
--- a/mobile/android/base/strings.xml.in
+++ b/mobile/android/base/strings.xml.in
@@ -147,4 +147,10 @@
 
   <string name="bookmarkdefaults_title_abouthome">@bookmarks_aboutHome@</string>
   <string name="bookmarkdefaults_url_abouthome">about:home</string>
+
+  <!-- Don't keep activities prompt -->
+  <string name="ics_dumbness_title">&ics_dumbness_title;</string>
+  <string name="ics_dumbness_message">&ics_dumbness_message;</string>
+  <string name="ics_dumbness_ok">&ics_dumbness_ok;</string>
+
 </resources>