diff --git a/weboob/backends/aum/adopte.py b/weboob/backends/aum/adopte.py
index e8e398ed..d8865ae1 100644
--- a/weboob/backends/aum/adopte.py
+++ b/weboob/backends/aum/adopte.py
@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 import time
 from logging import warning
 
-from weboob.tools.browser import Browser
+from weboob.tools.browser import BaseBrowser
 from weboob.tools.parser import Html5libParser
 
 from weboob.backends.aum.exceptions import AdopteWait
@@ -36,7 +36,7 @@ from weboob.backends.aum.pages.login import LoginPage, RedirectPage, BanPage, Er
 from weboob.backends.aum.pages.edit import EditPhotoPage, EditPhotoCbPage, EditAnnouncePage, EditDescriptionPage, EditSexPage, EditPersonalityPage
 from weboob.backends.aum.pages.wait import WaitPage
 
-class AdopteUnMec(Browser):
+class AdopteUnMec(BaseBrowser):
     DOMAIN = 'www.adopteunmec.com'
     PROTOCOL = 'http'
     ENCODING = 'iso-8859-1'
@@ -71,7 +71,7 @@ class AdopteUnMec(Browser):
 
     def __init__(self, *args, **kwargs):
         kwargs['parser'] = Html5libParser(api='dom')
-        Browser.__init__(self, *args, **kwargs)
+        BaseBrowser.__init__(self, *args, **kwargs)
         self.my_id = 0
 
     def login(self):
diff --git a/weboob/backends/bnporc/browser.py b/weboob/backends/bnporc/browser.py
index 7cdac148..d13020db 100644
--- a/weboob/backends/bnporc/browser.py
+++ b/weboob/backends/bnporc/browser.py
@@ -20,7 +20,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 from cStringIO import StringIO
 
-from weboob.tools.browser import Browser, BrowserIncorrectPassword
+from weboob.tools.browser import BaseBrowser, BrowserIncorrectPassword
 from weboob.tools.parser import ElementTidyParser
 from weboob.backends.bnporc import pages
 
@@ -33,7 +33,7 @@ class BNParser(ElementTidyParser):
         return ElementTidyParser.parse(self, data, encoding)
 
 # Browser
-class BNPorc(Browser):
+class BNPorc(BaseBrowser):
     DOMAIN = 'www.secure.bnpparibas.net'
     PROTOCOL = 'https'
     ENCODING = None # refer to the HTML encoding
@@ -51,7 +51,7 @@ class BNPorc(Browser):
     def __init__(self, *args, **kwargs):
         kwargs['parser'] = BNParser()
         kwargs['history'] = None # need history
-        Browser.__init__(self, *args, **kwargs)
+        BaseBrowser.__init__(self, *args, **kwargs)
 
     def home(self):
         self.location('https://www.secure.bnpparibas.net/banque/portail/particulier/HomeConnexion?type=homeconnex')
diff --git a/weboob/backends/canaltp/browser.py b/weboob/backends/canaltp/browser.py
index c01d38ac..e664f31b 100644
--- a/weboob/backends/canaltp/browser.py
+++ b/weboob/backends/canaltp/browser.py
@@ -19,16 +19,16 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 """
 
 from datetime import datetime, date, time
-from weboob.tools.browser import Browser
+from weboob.tools.browser import BaseBrowser
 from weboob.tools.misc import toUnicode
 
-class CanalTP(Browser):
+class CanalTP(BaseBrowser):
     DOMAIN = 'widget.canaltp.fr'
     PROTOCOL = 'http'
     PAGES = {}
 
     def __init__(self):
-        Browser.__init__(self, '')
+        BaseBrowser.__init__(self, '')
 
     def iter_station_search(self, pattern):
         result = self.openurl(u"http://widget.canaltp.fr/Prochains_departs_15122009/dev/gare.php?txtrech=%s" % unicode(pattern)).read()
diff --git a/weboob/backends/cragr/browser.py b/weboob/backends/cragr/browser.py
index 4f9929ed..56bc6752 100644
--- a/weboob/backends/cragr/browser.py
+++ b/weboob/backends/cragr/browser.py
@@ -18,11 +18,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 """
 
-from weboob.tools.browser import Browser, BrowserIncorrectPassword
+from weboob.tools.browser import BaseBrowser, BrowserIncorrectPassword
 from weboob.backends.cragr import pages
 
 # Browser
-class Cragr(Browser):
+class Cragr(BaseBrowser):
     PROTOCOL = 'https'
     ENCODING = 'utf-8'
     USER_AGENT = 'Wget/1.11.4'
@@ -35,7 +35,7 @@ class Cragr(Browser):
                       'https://%s/.*\.c.*'       % website:   pages.AccountsList,
                       'https://%s/login/process' % website:   pages.AccountsList,
                      }
-        Browser.__init__(self, *args, **kwargs)
+        BaseBrowser.__init__(self, *args, **kwargs)
 
     def viewing_html(self):
         """
diff --git a/weboob/backends/dlfp/browser.py b/weboob/backends/dlfp/browser.py
index 923913a4..1679c6b0 100644
--- a/weboob/backends/dlfp/browser.py
+++ b/weboob/backends/dlfp/browser.py
@@ -21,7 +21,7 @@ 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 weboob.tools.browser import BaseBrowser
 from .pages.index import IndexPage, LoginPage
 from .pages.news import ContentPage
 from .tools import id2url, id2threadid, id2contenttype
@@ -37,7 +37,7 @@ class DLFParser(StandardParser):
         return StandardParser.parse(self, data, encoding)
 
 # Browser
-class DLFP(Browser):
+class DLFP(BaseBrowser):
     DOMAIN = 'linuxfr.org'
     PROTOCOL = 'https'
     PAGES = {'https://linuxfr.org/': IndexPage,
@@ -49,7 +49,7 @@ class DLFP(Browser):
 
     def __init__(self, *args, **kwargs):
         kwargs['parser'] = DLFParser()
-        Browser.__init__(self, *args, **kwargs)
+        BaseBrowser.__init__(self, *args, **kwargs)
 
     def home(self):
         return self.location('https://linuxfr.org')
diff --git a/weboob/backends/transilien/browser.py b/weboob/backends/transilien/browser.py
index 095bd233..844ca835 100644
--- a/weboob/backends/transilien/browser.py
+++ b/weboob/backends/transilien/browser.py
@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 from datetime import datetime, date, time
 import HTMLParser
 
-from weboob.tools.browser import Browser
+from weboob.tools.browser import BaseBrowser
 from weboob.tools.misc import toUnicode
 
 from .pages.route import RoutePage
@@ -114,7 +114,7 @@ class Parser(HTMLParser.HTMLParser):
             __curseur_horaire += 1
         return __list_route
 
-class Transilien(Browser):
+class Transilien(BaseBrowser):
     DOMAIN = 'www.transilien.com'
     PROTOCOL = 'http'
     PAGES = {'http://www\.transilien\.com/web/ITProchainsTrainsAvecDest\.do\?.*': RoutePage,
@@ -122,7 +122,7 @@ class Transilien(Browser):
             }
 
     def __init__(self):
-        Browser.__init__(self, '', parser=Parser())
+        BaseBrowser.__init__(self, '', parser=Parser())
 
     def iter_station_search(self, pattern):
         pass
diff --git a/weboob/backends/youjizz/browser.py b/weboob/backends/youjizz/browser.py
index 71bf2dd0..ace6171f 100644
--- a/weboob/backends/youjizz/browser.py
+++ b/weboob/backends/youjizz/browser.py
@@ -21,10 +21,10 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 from logging import error
 import re
 
-from weboob.tools.browser import Browser
+from weboob.tools.browser import BaseBrowser
 from weboob.tools.parser import LxmlHtmlParser
 
-class YoujizzBrowser(Browser):
+class YoujizzBrowser(BaseBrowser):
     video_file_regex = re.compile(r'"(http://media[^ ,]+\.flv)"')
 
     def __init__(self, *args, **kwargs):
diff --git a/weboob/backends/youtube/browser.py b/weboob/backends/youtube/browser.py
index d701118d..68bc36fb 100644
--- a/weboob/backends/youtube/browser.py
+++ b/weboob/backends/youtube/browser.py
@@ -20,18 +20,20 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 import re
 
-from weboob.tools.browser import Browser
+from weboob.tools.browser import BaseBrowser
 from weboob.tools.parser import LxmlHtmlParser
 
 from .pages import VideoPage
 
-class YoutubeBrowser(Browser):
+    video_signature_regex = re.compile(r'&t=([^ ,&]*)')
+
+class YoutubeBrowser(BaseBrowser):
     video_signature_regex = re.compile(r'&t=([^ ,&]*)')
 
     def __init__(self, *args, **kwargs):
         kwargs['parser'] = LxmlHtmlParser()
-        self.PAGES = {r'http://.*\.youtube\.com/watch\?v=(.+)': VideoPage}
-        Browser.__init__(self, *args, **kwargs)
+        self.PAGES = {r'.*youtube\.com/watch\?v=(.+)': VideoPage}
+        BaseBrowser.__init__(self, *args, **kwargs)
 
     def get_video_title(self, page_url):
         self.location(page_url)
diff --git a/weboob/tools/browser.py b/weboob/tools/browser.py
index 154423ad..d017b765 100644
--- a/weboob/tools/browser.py
+++ b/weboob/tools/browser.py
@@ -75,7 +75,7 @@ class BasePage(object):
         """
         pass
 
-class Browser(mechanize.Browser):
+class BaseBrowser(mechanize.Browser):
     """
     Base browser class to navigate on a website.
     """