-With Firefox 78, an additional option as added for `Startpage`, `homepage-locked`. If this is value is set for the Startpage, the user will always get the homepage at startup and cannot choose to restore their session.
+| Value | Description
+|-------------------|-----------------------------------------------------------------------------
+| `none` | Start with a blank page (no homepage, no previous session).
+| `homepage` | Start with the homepage in `URL` policy.
+| `previous-session`| Restore the previous session (all tabs and windows reopen).
+| `homepage-locked` | Always force the homepage at startup, users cannot choose session restore. (Firefox 78)