diff --git a/weboob/backends/dlfp/backend.py b/weboob/backends/dlfp/backend.py
index 1cd84594..fb537d38 100644
--- a/weboob/backends/dlfp/backend.py
+++ b/weboob/backends/dlfp/backend.py
@@ -20,12 +20,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 from weboob.backend import Backend
 from weboob.capabilities.messages import ICapMessages, ICapMessagesReply, Message
-from weboob.capabilities.updatable import ICapUpdatable
 
 from .feeds import ArticlesList
 from .browser import DLFP
 
-class DLFPBackend(Backend, ICapMessages, ICapMessagesReply, ICapUpdatable):
+class DLFPBackend(Backend, ICapMessages, ICapMessagesReply):
     NAME = 'dlfp'
     MAINTAINER = 'Romain Bignon'
     EMAIL = 'romain@peerfuse.org'
@@ -104,3 +103,6 @@ class DLFPBackend(Backend, ICapMessages, ICapMessagesReply, ICapUpdatable):
                                   'Score: %d' % comment.score)
         self.storage.set(self.name, 'seen', what, seen)
         self.storage.save(self.name)
+
+    def post_reply(self, thread_id, reply_id, message):
+        return self.browser.post(thread_id, reply_id, message)
diff --git a/weboob/backends/dlfp/browser.py b/weboob/backends/dlfp/browser.py
index 5eb4f960..c69c6225 100644
--- a/weboob/backends/dlfp/browser.py
+++ b/weboob/backends/dlfp/browser.py
@@ -18,12 +18,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 """
 
+import urllib
 from cStringIO import StringIO
 
 from weboob.tools.browser import Browser
 from .pages.index import IndexPage, LoginPage
 from .pages.news import ContentPage
-from .tools import id2url
+from .tools import id2url, id2threadid, id2contenttype
 
 from weboob.tools.parser import StandardParser
 
@@ -57,6 +58,44 @@ class DLFP(Browser):
         self.location(id2url(_id))
         return self.page.get_article()
 
+    def post_reply(self, thread, reply_id, title, message):
+        content_type = id2contenttype(thread)
+        thread_id = id2threadid(thread)
+        reply_id = int(reply_id)
+
+        if not content_type or not thread_id:
+            return False
+
+        # Define every data fields
+        d = {'news_id': thread_id,
+             'com_parent': reply_id,
+             'timestamp': '',
+             'res_type': content_type,
+             'referer': '%s://%s%s' % (self.PROTOCOL, self.DOMAIN, id2url(thread)),
+             'subject': title,
+             'body': message,
+             'format': 3,
+             'submit': 'Envoyer',
+        }
+
+        data = ''
+        for key, value in d.iteritems():
+            if data:
+                data += '&'
+            data += key
+            data += '='
+            if isinstance(value, unicode):
+                value = value.encode('utf-8')
+            else:
+                value = str(value)
+            data += urllib.quote_plus(value)
+
+        url = '%s://%s/submit/comments,%d,%d,%d.html#post' % (self.PROTOCOL, self.DOMAIN, thread_id, reply_id, content_type)
+
+        request = self.request_class(url, data, {'Referer': url})
+        result = self.openurl(request).read()
+        return result.find('<div class="commentsreplythanks">') >= 0
+
     def login(self):
         self.location('/login.html', 'login=%s&passwd=%s&isauto=1' % (self.username, self.password))
 
diff --git a/weboob/backends/dlfp/tools.py b/weboob/backends/dlfp/tools.py
index 55fb67e0..1d79a278 100644
--- a/weboob/backends/dlfp/tools.py
+++ b/weboob/backends/dlfp/tools.py
@@ -42,3 +42,21 @@ def id2url(_id):
     if m:
         return '/~%s/%d.html' % (m.group(1), int(m.group(2)))
     return None
+
+def id2threadid(_id):
+    m = URL2ID_NEWSPAPER.match(_id)
+    if m:
+        return int(m.group(4))
+    m = URL2ID_TELEGRAM.match(_id)
+    if m:
+        return int(m.group(2))
+    return None
+
+def id2contenttype(_id):
+    if not _id:
+        return None
+    if _id[0] == 'N':
+        return 1
+    if _id[0] == 'T':
+        return 5
+    return None
diff --git a/weboob/capabilities/messages.py b/weboob/capabilities/messages.py
index cb01785a..68d45c2d 100644
--- a/weboob/capabilities/messages.py
+++ b/weboob/capabilities/messages.py
@@ -98,5 +98,13 @@ class ICapMessages(ICap):
         raise NotImplementedError()
 
 class ICapMessagesReply(ICap):
-    def post_reply(self, to, message):
+    def post_reply(self, thread_id, reply_id, title, message):
+        """
+        Post a reply.
+
+        @param thread_id  ID of thread
+        @param reply_id  message's id to reply
+        @param title  title of message
+        @param message  message to send
+        """
         raise NotImplementedError()
diff --git a/weboob/tools/browser.py b/weboob/tools/browser.py
index 0bf9238f..838779a5 100644
--- a/weboob/tools/browser.py
+++ b/weboob/tools/browser.py
@@ -152,7 +152,7 @@ class Browser(mechanize.Browser):
 
     def change_location(func):
         def inner(self, *args, **kwargs):
-            if args and args[0][0] == '/' and (not self.request or self.request.host != self.DOMAIN):
+            if args and isinstance(args[0], (str,unicode)) and args[0][0] == '/' and (not self.request or self.request.host != self.DOMAIN):
                 args = ('%s://%s%s' % (self.PROTOCOL, self.DOMAIN, args[0]),) + args[1:]
                 print args