--- a/mobile/android/base/resources/values/themes.xml
+++ b/mobile/android/base/resources/values/themes.xml
@@ -6,16 +6,17 @@
 <resources>
 
     <!--
         Base application theme. This could be overridden by GeckoBaseTheme
         in other res/values-XXX/themes.xml.
     -->
     <style name="GeckoBase" parent="Theme.AppCompat.Light.DarkActionBar">
         <item name="windowNoTitle">true</item>
+        <item name="windowActionBar">false</item>
         <item name="android:windowContentOverlay">@null</item>
     </style>
 
     <style name="GeckoDialogBase" parent="@android:style/Theme.Dialog">
         <item name="android:windowNoTitle">true</item>
         <item name="android:windowContentOverlay">@null</item>
     </style>