See https://developer.mozilla.org/en-US/docs/Mozilla/Integrated_authentication for more information.
-`PrivateBrowsing` enables integrated authentication in prviate browsing.
+`PrivateBrowsing` enables integrated authentication in private browsing.
**Compatibility:** Firefox 60, Firefox ESR 60 (AllowNonFQDN added in 62/60.2, AllowProxies added in 70/68.2, Locked added in 71/68.3, PrivateBrowsing added in 77/68.9)\
**CCK2 Equivalent:** N/A\
`Status` can be "default", "locked", "user" or "clear"
+Default preferences can be modified by the user.
+
If a value is locked, it is also set as the default.
-User preferences persist across invocations of Firefox.
+User preferences persist across invocations of Firefox. It is the equivalent of a user setting the preference. They are most useful when a preference is needed very early in startup so it can't be set as a default by policy.
See the examples below for more detail.