XXX: VirtualBox Guest Additions has been removed since Tails 4.27. Without Guest Additions, the shared folders feature of VirtualBox is unavailable.Until Guest Additions is added back (#18728), the tip below shouldn't be displayed.
<li><p>The <a href="https://www.virtualbox.org/manual/ch04.html#guestadd-intro">shared clipboard</a> feature of <i>VirtualBox</i> is unavailable.</p></li>
<li><p>The screen resolution of Tails can't be changed by resizing the virtual machine window in the host OS. The screen resolution must be changed from inside Tails.</p>
<p>To change the screen resolution from inside Tails, choose <b>Applications ▸ System Tools ▸ Settings ▸ Displays ▸ Resolution</b>.</p>