diff -r 0ef50a5e3ae1 -r c792f7c64f0c mercurial/help.py
--- a/mercurial/help.py	Sun Dec 27 13:08:51 2015 +0900
+++ b/mercurial/help.py	Sun Dec 27 14:13:27 2015 +0900
@@ -62,7 +62,8 @@
     rst = loaddoc('extensions')(ui).splitlines(True)
     rst.extend(listexts(
         _('enabled extensions:'), extensions.enabled(), showdeprecated=True))
-    rst.extend(listexts(_('disabled extensions:'), extensions.disabled()))
+    rst.extend(listexts(_('disabled extensions:'), extensions.disabled(),
+                        showdeprecated=ui.verbose))
     doc = ''.join(rst)
     return doc