iceraven-browser/app/src/main/res/xml/close_tabs_preferences.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/. -->
<androidx.preference.PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <org.mozilla.fenix.settings.RadioButtonPreference
        android:defaultValue="true"
        android:key="@string/pref_key_close_tabs_manually"
        android:title="@string/close_tabs_manually" />

    <org.mozilla.fenix.settings.RadioButtonPreference
        android:defaultValue="false"
        android:key="@string/pref_key_close_tabs_after_one_day"
        android:title="@string/close_tabs_after_one_day" />

    <org.mozilla.fenix.settings.RadioButtonPreference
        android:defaultValue="false"
        android:key="@string/pref_key_close_tabs_after_one_week"
        android:title="@string/close_tabs_after_one_week" />

    <org.mozilla.fenix.settings.RadioButtonPreference
        android:defaultValue="false"
        android:key="@string/pref_key_close_tabs_after_one_month"
        android:title="@string/close_tabs_after_one_month" />
</androidx.preference.PreferenceScreen>