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

<?xml version="1.0" encoding="utf-8"?>
<org.mozilla.gecko.AwesomeBarTabs xmlns:android="http://schemas.android.com/apk/res/android"
                                  android:id="@+id/awesomebar_tabs"
                                  android:layout_width="match_parent"
                                  android:layout_height="wrap_content">

    <LinearLayout android:orientation="vertical"
                  android:layout_width="fill_parent"
                  android:layout_height="fill_parent">

        <TabWidget android:id="@android:id/tabs"
                   style="@style/TabWidget"/>

        <FrameLayout android:id="@android:id/tabcontent"
                     android:layout_width="fill_parent"
                     android:layout_height="fill_parent">

            <ListView android:id="@+id/all_pages_list"
                      style="@style/AwesomeBarList"/>

            <ListView android:id="@+id/bookmarks_list"
                      style="@style/AwesomeBarList"/>

            <ExpandableListView android:id="@+id/history_list"
                                style="@style/AwesomeBarList"
                                android:groupIndicator="@android:color/transparent"/>

        </FrameLayout>

    </LinearLayout>

</org.mozilla.gecko.AwesomeBarTabs>