diff --git a/hgext/children.py b/hgext/children.py
index da2fe9c55a..fe6a8f00bf 100644
--- a/hgext/children.py
+++ b/hgext/children.py
@@ -8,7 +8,11 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-'''command to display child changesets'''
+'''command to display child changesets (DEPRECATED)
+
+This extension is deprecated. You should use :hg:`log -r
+"children(REV)"` instead.
+'''
 
 from mercurial import cmdutil
 from mercurial.commands import templateopts
diff --git a/hgext/fetch.py b/hgext/fetch.py
index f6d3dbbe72..b909ef0964 100644
--- a/hgext/fetch.py
+++ b/hgext/fetch.py
@@ -5,7 +5,7 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-'''pull, update and merge in one command'''
+'''pull, update and merge in one command (DEPRECATED)'''
 
 from mercurial.i18n import _
 from mercurial.node import nullid, short
diff --git a/mercurial/extensions.py b/mercurial/extensions.py
index 9cfb49dede..801165d521 100644
--- a/mercurial/extensions.py
+++ b/mercurial/extensions.py
@@ -301,7 +301,7 @@ def disabledext(name):
 
 def disabledcmd(ui, cmd, strict=False):
     '''import disabled extensions until cmd is found.
-    returns (cmdname, extname, doc)'''
+    returns (cmdname, extname, module)'''
 
     paths = _disabledpaths(strip_init=True)
     if not paths:
@@ -329,18 +329,19 @@ def disabledcmd(ui, cmd, strict=False):
             cmd = aliases[0]
         return (cmd, name, mod)
 
+    ext = None
     # first, search for an extension with the same name as the command
     path = paths.pop(cmd, None)
     if path:
         ext = findcmd(cmd, cmd, path)
-        if ext:
-            return ext
-
-    # otherwise, interrogate each extension until there's a match
-    for name, path in paths.iteritems():
-        ext = findcmd(cmd, name, path)
-        if ext:
-            return ext
+    if not ext:
+        # otherwise, interrogate each extension until there's a match
+        for name, path in paths.iteritems():
+            ext = findcmd(cmd, name, path)
+            if ext:
+                break
+    if ext and 'DEPRECATED' not in ext.__doc__:
+        return ext
 
     raise error.UnknownCommand(cmd)