gecko/mobile/android/base/resources/layout/tabs_panel.xml

<?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/. -->

<merge xmlns:android="http://schemas.android.com/apk/res/android">

    <RelativeLayout android:layout_width="fill_parent"
                    android:layout_height="@dimen/browser_toolbar_height">

        <LinearLayout android:layout_width="fill_parent"
                      android:layout_height="fill_parent"
                      android:background="@drawable/tabs_tray_bg_repeat">

            <TextView android:id="@+id/title"
                      android:layout_width="wrap_content"
                      android:layout_height="fill_parent"
                      android:layout_weight="1.0"
                      style="@style/TabRowTextAppearance"
                      android:gravity="center_vertical"
                      android:padding="10dip"
                      android:textSize="16sp"/>
    
            <ImageButton android:id="@+id/remote_tabs"
                         android:layout_width="@dimen/browser_toolbar_height"
                         android:layout_height="@dimen/browser_toolbar_height"
                         android:paddingTop="15dip"
                         android:paddingBottom="15dip"
                         android:paddingLeft="20dip"
                         android:paddingRight="20dip"
                         android:src="@drawable/remote_tabs_level"
                         android:contentDescription="@string/remote_tabs"
                         android:background="@drawable/tabs_tray_default_selector"
                         android:visibility="gone"/>
    
            <ImageButton android:id="@+id/add_tab"
                         android:layout_width="@dimen/browser_toolbar_height"
                         android:layout_height="@dimen/browser_toolbar_height"
                         android:paddingTop="15dip"
                         android:paddingBottom="15dip"
                         android:paddingLeft="20dip"
                         android:paddingRight="20dip"
                         android:src="@drawable/tab_new"
                         android:contentDescription="@string/new_tab"
                         android:background="@drawable/tabs_tray_default_selector"/>
    
        </LinearLayout>
    
        <LinearLayout android:layout_width="fill_parent"
                      android:layout_height="2dp"
                      android:layout_alignParentBottom="true"
                      android:background="@drawable/tabs_tray_list_divider"/>

    </RelativeLayout>

</merge>