Update README.md

Modified the Preferences `"Status"` values to more clearly reflect that they refer to the various options. Also added a R/W and appearance list.

diff --git a/README.md b/README.md
index d36efa39a43df1ad99d883a7e1037bca2267b955..21ea6c7e2fa96f4741f3e4c53d30e0b6d7fe80dd 100644 (file)
--- a/README.md
+++ b/README.md
@@ -4334,13 +4334,14 @@ Using the preference as the key, set the `Value` to the corresponding preference
 
 `Status` can be "default", "locked", "user" or "clear"
 
-Default preferences can be modified by the user.
+* `"default"`: Read/Write: Setting appear as default even if factory default differs.
+* `"locked"`: Read-Only: Setting appear as default even if factory default differs.
+* `"user"`: Read/Write: Setting appear as changed if it differ from factory default.
+* `"clear"`: Read/Write: `Value` has no effect. Resets to factory default on each startup.
 
-If a value is locked, it is also set as the default.
+`"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 default by policy. An example of this is ```toolkit.legacyUserProfileCustomizations.stylesheets```.
 
-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 default by policy. An example of this is ```toolkit.legacyUserProfileCustomizations.stylesheets```.
-
-User preferences persist even if the policy is removed, so if you need to remove them, you should use the clear policy.
+`"user"` preferences persist even if the policy is removed, so if you need to remove them, you should use the clear policy.
 
 See the examples below for more detail.