Hello all,
I got some questions about disappearing Additional Protection tab.
With Browser Protection and Remote Assistance (i.e. all "components") uninstalled, "Additional Protection" tab is gone, although there should be two entries left: Autosandbox and Site Blocking.
Especially, we cannot access Site-Block feature without this tab, so if you want to use site-block you have to install some of the components.
Hope this bug will get fixed till next program update.