--- a/mobile/android/base/BrowserApp.java
+++ b/mobile/android/base/BrowserApp.java
@@ -98,16 +98,17 @@ import android.graphics.drawable.Drawabl
 import android.net.Uri;
 import android.nfc.NdefMessage;
 import android.nfc.NdefRecord;
 import android.nfc.NfcAdapter;
 import android.nfc.NfcEvent;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.StrictMode;
+import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.content.LocalBroadcastManager;
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.InputDevice;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
@@ -147,16 +148,17 @@ public class BrowserApp extends GeckoApp
     private static final int TABS_ANIMATION_DURATION = 450;
 
     private static final String ADD_SHORTCUT_TOAST = "add_shortcut_toast";
     public static final String GUEST_BROWSING_ARG = "--guest";
 
     private static final String STATE_ABOUT_HOME_TOP_PADDING = "abouthome_top_padding";
 
     private static final String BROWSER_SEARCH_TAG = "browser_search";
+    private static final String ONBOARD_STARTPANE_TAG = "startpane_dialog";
 
     // Request ID for startActivityForResult.
     private static final int ACTIVITY_REQUEST_PREFERENCES = 1001;
 
     public static final String PREF_STARTPANE_ENABLED = "startpane_enabled";
 
     private BrowserSearch mBrowserSearch;
     private View mBrowserSearchContainer;
@@ -623,26 +625,26 @@ public class BrowserApp extends GeckoApp
     private void checkStartPane(Context context, String intentAction) {
         final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads();
 
         try {
             final SharedPreferences prefs = GeckoSharedPrefs.forProfile(this);
 
             if (prefs.getBoolean(PREF_STARTPANE_ENABLED, false)) {
                 if (!Intent.ACTION_VIEW.equals(intentAction)) {
-                    final Intent startIntent = new Intent(this, StartPane.class);
-                    context.startActivity(startIntent);
+                    final DialogFragment dialog = new StartPane();
+                    dialog.show(getSupportFragmentManager(), ONBOARD_STARTPANE_TAG);
                 }
                 // Don't bother trying again to show the v1 minimal first run.
                 prefs.edit().putBoolean(PREF_STARTPANE_ENABLED, false).apply();
             }
         } finally {
             StrictMode.setThreadPolicy(savedPolicy);
         }
-      }
+    }
 
     private Class<?> getMediaPlayerManager() {
         if (AppConstants.MOZ_MEDIA_PLAYER) {
             try {
                 return Class.forName("org.mozilla.gecko.MediaPlayerManager");
             } catch(Exception ex) {
                 // Ignore failures
                 Log.e(LOGTAG, "No native casting support", ex);

--- a/mobile/android/base/StartPane.java
+++ b/mobile/android/base/StartPane.java
@@ -1,77 +1,75 @@
 package org.mozilla.gecko;
 
 import org.mozilla.gecko.fxa.activities.FxAccountGetStartedActivity;
-import org.mozilla.gecko.util.HardwareUtils;
 
-import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
 import android.view.GestureDetector;
+import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.View.OnTouchListener;
+import android.view.ViewGroup;
 import android.widget.Button;
 
-public class StartPane extends Activity {
+public class StartPane extends DialogFragment {
 
     @Override
-    public void onCreate(Bundle bundle) {
-        super.onCreate(bundle);
-        setContentView(R.layout.onboard_start_pane);
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setStyle(DialogFragment.STYLE_NO_TITLE, 0);
+    }
 
-        final Button accountButton = (Button) findViewById(R.id.button_account);
-        accountButton.setOnClickListener(new OnClickListener() {
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
+        final View view = inflater.inflate(R.layout.onboard_start_pane, container, false);
+        final Button browserButton = (Button) view.findViewById(R.id.button_browser);
+        browserButton.setOnClickListener(new OnClickListener() {
 
             @Override
             public void onClick(View v) {
                 Telemetry.sendUIEvent(TelemetryContract.Event.ACTION, TelemetryContract.Method.BUTTON, "firstrun-sync");
-                showAccountSetup();
+
+                // StartPane is on the stack above the browser, so just dismiss this Fragment.
+                StartPane.this.dismiss();
             }
         });
 
-        final Button browserButton = (Button) findViewById(R.id.button_browser);
-        browserButton.setOnClickListener(new OnClickListener() {
+        final Button accountButton = (Button) view.findViewById(R.id.button_account);
+        accountButton.setOnClickListener(new OnClickListener() {
 
             @Override
             public void onClick(View v) {
                 Telemetry.sendUIEvent(TelemetryContract.Event.ACTION, TelemetryContract.Method.BUTTON, "firstrun-browser");
-                showBrowser();
+
+                final Intent intent = new Intent(getActivity(), FxAccountGetStartedActivity.class);
+                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                startActivity(intent);
+                StartPane.this.dismiss();
             }
         });
 
-        if (!HardwareUtils.isTablet() && !HardwareUtils.isTelevision()) {
-            addDismissHandler();
-        }
-    }
-
-    private void showBrowser() {
-        // StartPane is on the stack above the browser, so just kill this activity.
-        finish();
-    }
-
-    private void showAccountSetup() {
-        final Intent intent = new Intent(this, FxAccountGetStartedActivity.class);
-        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        startActivity(intent);
-        finish();
+        addDismissHandler(view);
+        return view;
     }
 
     // Add handler for dismissing the StartPane on a single click.
-    private void addDismissHandler() {
-        final GestureDetector gestureDetector = new GestureDetector(this, new GestureDetector.SimpleOnGestureListener() {
+    private void addDismissHandler(View view) {
+        final GestureDetector gestureDetector = new GestureDetector(getActivity(), new GestureDetector.SimpleOnGestureListener() {
             @Override
             public boolean onSingleTapUp(MotionEvent e) {
-                StartPane.this.finish();
+                StartPane.this.dismiss();
                 return true;
             }
         });
 
-        findViewById(R.id.onboard_content).setOnTouchListener(new OnTouchListener() {
+        view.findViewById(R.id.onboard_content).setOnTouchListener(new OnTouchListener() {
             @Override
             public boolean onTouch(View v, MotionEvent event) {
                 return gestureDetector.onTouchEvent(event);
             }
         });
     }
 }

--- a/mobile/android/base/resources/layout/onboard_start_pane.xml
+++ b/mobile/android/base/resources/layout/onboard_start_pane.xml
@@ -1,37 +1,37 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- This Source Code Form is subject to the terms of the Mozilla Public
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              style="@style/OnboardStartLayout"
+              android:layout_height="match_parent"
+              android:layout_width="wrap_content"
               android:orientation="vertical"
-              android:background="@color/onboard_start"
-              android:windowIsFloating="true">
+              android:background="@color/onboard_start">
 
     <ScrollView android:id="@+id/onboard_content"
                 android:layout_width="match_parent"
                 android:layout_height="0dp"
                 android:layout_weight="1"
                 android:fillViewport="true" >
 
         <LinearLayout android:orientation="vertical"
                       android:layout_width="match_parent"
                       android:layout_height="wrap_content">
 
             <!-- Empty spacer view -->
             <View android:layout_width="0dp"
                   android:layout_height="0dp"
                   android:layout_weight="1"/>
 
-            <RelativeLayout android:layout_width="match_parent"
-                            android:layout_height="wrap_content"
+            <RelativeLayout android:layout_width="wrap_content"
+                            android:layout_height="match_parent"
                             android:paddingTop="15dp">
 
                 <ImageView android:id="@+id/image_shield"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_alignParentTop="true"
                            android:layout_centerHorizontal="true"
                            android:paddingRight="92dp"
@@ -54,44 +54,45 @@
                            android:layout_below="@id/image_shield"
                            android:layout_marginTop="23dp"
                            android:src="@drawable/large_icon"
                            android:contentDescription="@string/onboard_empty_contentDescription"/>
 
                 <ImageView android:id="@+id/image_sync"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
+                           android:layout_centerHorizontal="true"
                            android:layout_below="@id/image_shield"
-                           android:layout_toLeftOf="@id/image_logo"
-                           android:layout_marginRight="30dp"
+                           android:paddingRight="200dp"
                            android:src="@drawable/onboard_start_sync"
                            android:contentDescription="@string/onboard_empty_contentDescription"/>
 
                 <ImageView android:id="@+id/image_addon"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
-                           android:layout_below="@id/image_private"
-                           android:layout_toRightOf="@id/image_logo"
-                           android:layout_marginLeft="30dp"
+                           android:layout_centerHorizontal="true"
+                           android:layout_below="@id/image_shield"
+                           android:paddingLeft="200dp"
                            android:src="@drawable/onboard_start_addon"
                            android:contentDescription="@string/onboard_empty_contentDescription"/>
 
                 <TextView android:id="@+id/text_message"
-                          android:layout_width="wrap_content"
+                          android:layout_width="match_parent"
                           android:layout_height="wrap_content"
                           android:layout_below="@id/image_logo"
                           android:layout_centerHorizontal="true"
                           android:layout_marginTop="30dp"
+                          android:gravity="center"
                           android:padding="10sp"
                           android:text="@string/onboard_start_message"
                           android:textAppearance="@style/OnboardStartTextAppearance"
                           android:textSize="23sp" />
 
                 <TextView android:layout_width="295dp"
-                          android:layout_height="wrap_content"
+                          android:layout_height="match_parent"
                           android:layout_gravity="center"
                           android:gravity="center"
                           android:layout_below="@id/text_message"
                           android:layout_centerHorizontal="true"
                           android:lineSpacingExtra="12sp"
                           android:padding="10sp"
                           android:text="@string/onboard_start_subtext"
                           android:textAppearance="@style/OnboardStartTextAppearance.Subtext" />
@@ -119,9 +120,9 @@
                 android:text="@string/onboard_start_button_account"/>
 
         <Button android:id="@+id/button_browser"
                 style="@style/Widget.Onboard.Start.Button"
                 android:layout_marginTop="3px"
                 android:text="@string/onboard_start_button_browser"/>
 
     </LinearLayout>
-</LinearLayout>
+</LinearLayout>
\ No newline at end of file

--- a/mobile/android/base/resources/values-large-v11/styles.xml
+++ b/mobile/android/base/resources/values-large-v11/styles.xml
@@ -163,18 +163,13 @@
     </style>
 
     <style name="TabsPanelItem.TextAppearance.Linkified.LearnMore">
         <item name="android:layout_height">match_parent</item>
         <item name="android:gravity">center</item>
         <item name="android:layout_gravity">center</item>
     </style>
 
-    <style name="OnboardStartLayout">
-        <item name="android:layout_height">wrap_content</item>
-        <item name="android:layout_width">400dp</item>
-    </style>
-
     <style name="TextAppearance.UrlBar.Title" parent="TextAppearance.Medium">
         <item name="android:textSize">16sp</item>
     </style>
 
 </resources>

--- a/mobile/android/base/resources/values/styles.xml
+++ b/mobile/android/base/resources/values/styles.xml
@@ -830,20 +830,16 @@
 
     <!-- Make the share overlay activity appear like an overlay. -->
     <style name="ShareOverlayActivity">
         <item name="android:windowBackground">@android:color/transparent</item>
         <item name="android:windowNoTitle">true</item>
         <item name="android:windowIsTranslucent">true</item>
         <item name="android:backgroundDimEnabled">true</item>
     </style>
-    <style name="OnboardStartLayout">
-        <item name="android:layout_width">match_parent</item>
-        <item name="android:layout_height">match_parent</item>
-    </style>
 
     <style name="OnboardStartTextAppearance">
         <item name="android:textColor">#5F636B</item>
     </style>
 
     <style name="OnboardStartTextAppearance.Subtext">
         <item name="android:textSize">18sp</item>
     </style>