diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -7830,7 +7830,7 @@
     names = []
     vers = []
     isinternals = []
-    for name, module in extensions.extensions():
+    for name, module in sorted(extensions.extensions()):
         names.append(name)
         vers.append(extensions.moduleversion(module) or None)
         isinternals.append(extensions.ismoduleinternal(module))
diff --git a/tests/test-extension.t b/tests/test-extension.t
--- a/tests/test-extension.t
+++ b/tests/test-extension.t
@@ -1559,8 +1559,8 @@
   
   Enabled extensions:
   
+    strip  internal  
     throw  external  1.twentythree
-    strip  internal  
 
   $ hg version -q --config extensions.throw=throw.py
   Mercurial Distributed SCM (version *) (glob)
@@ -1600,8 +1600,8 @@
 
   $ hg version --config extensions.throw=throw.py --config extensions.strip= \
   > -T'{extensions % "{name}  {pad(ver, 16)}  ({if(bundled, "internal", "external")})\n"}'
+  strip                    (internal)
   throw  1.twentythree     (external)
-  strip                    (internal)
 
 Refuse to load extensions with minimum version requirements