diff --git a/weboob/tools/browser2/browser.py b/weboob/tools/browser2/browser.py
index 5ee78837..bef5bdf7 100644
--- a/weboob/tools/browser2/browser.py
+++ b/weboob/tools/browser2/browser.py
@@ -39,6 +39,7 @@ except ImportError:
 from weboob.tools.log import getLogger
 
 from .cookies import WeboobCookieJar
+from .exceptions import HTTPNotFound, ClientError, ServerError
 
 
 class Profile(object):
@@ -318,9 +319,29 @@ class BaseBrowser(object):
         if allow_redirects:
             response = self.handle_refresh(response)
 
+        self.raise_for_status(response)
+        return response
+
+    def raise_for_status(self, response):
+        """
+        Like Response.raise_for_status but will use other classes if needed.
+        """
+        http_error_msg = None
+        if 400 <= response.status_code < 500:
+            http_error_msg = '%s Client Error: %s' % (response.status_code, response.reason)
+            cls = ClientError
+            if response.status_code == 404:
+                cls = HTTPNotFound
+        elif 500 <= response.status_code < 600:
+            http_error_msg = '%s Server Error: %s' % (response.status_code, response.reason)
+            cls = ServerError
+
+        if http_error_msg:
+            raise cls(http_error_msg, response=response)
+
+        # in case we did not catch something that should be
         response.raise_for_status()
 
-        return response
 
     def build_request(self, url, referrer=None, data_encoding=None, **kwargs):
         """
diff --git a/weboob/tools/browser2/exceptions.py b/weboob/tools/browser2/exceptions.py
new file mode 100644
index 00000000..6c5c6585
--- /dev/null
+++ b/weboob/tools/browser2/exceptions.py
@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+
+# Copyright(C) 2014 Laurent Bachelier
+#
+# This file is part of weboob.
+#
+# weboob is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# weboob is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with weboob. If not, see <http://www.gnu.org/licenses/>.
+
+from requests.exceptions import HTTPError
+from weboob.tools.exceptions import BrowserHTTPError, BrowserHTTPNotFound
+
+
+class HTTPNotFound(HTTPError, BrowserHTTPNotFound):
+    pass
+
+
+class ClientError(HTTPError, BrowserHTTPError):
+    pass
+
+
+class ServerError(HTTPError, BrowserHTTPError):
+    pass