diff --git a/workers/link_validator_with_provided_list.py b/workers/link_validator_with_provided_list.py
index 153d68e..bae1f1e 100644
--- a/workers/link_validator_with_provided_list.py
+++ b/workers/link_validator_with_provided_list.py
@@ -13,7 +13,7 @@ from db.mongo_manager import MONGO_STORE_MANAGER
 from models.LinkPojo import LinkPojo
 from models.result_pojo import RequestResult
 from proxy_manager.proxy_manager import ProxyManager
-from queue_message.CookiesPublisher import CookiesPublisher, MORNING_DATA_CACHE
+from queue_message.CookiesPublisher import CookiesPublisher, MORNING_DATA_CACHE, MORNING_DATA_CACHE_BAK
 from queue_message.appointmentrequestsender import QUEUE_HOST, REQUEST_DATA_QUEUE, credentials
 from utils.AppLogging import init_logger
 from utils.user_agent_helper import generate_headers_from_request_message
@@ -28,8 +28,12 @@ logger = logging.getLogger()
 def filter_link_pojo_list_with_serial(_received_dict, link_to_validate_list):
     _serial = _received_dict["serial"]
     _model = _received_dict["model"]
-    _to_return = filter(lambda link_pojo: link_pojo.serial == _serial, link_to_validate_list)
-    return list(_to_return)
+    _bit_browser_list = list(filter(lambda link_pojo: link_pojo.serial == "bitbrowser", link_to_validate_list))
+    if len(_bit_browser_list) > 0:
+        return _bit_browser_list
+    else:
+        _to_return = filter(lambda link_pojo: link_pojo.serial == _serial, link_to_validate_list)
+        return list(_to_return)
 
 
 class LinkValidatorWithProvidedList(threading.Thread):
@@ -194,7 +198,8 @@ class LinkValidatorWithProvidedList(threading.Thread):
 
 def validate_links(cookiesPublisher, queue_name: str, link_list: list, _contact_serial_list):
     receiver = LinkValidatorWithProvidedList(cookiesPublisher=cookiesPublisher, link_list=link_list,
-                                             queue_to_listen=queue_name, _contact_serial_list= _contact_serial_list, ip_country="FR", limit=0)
+                                             queue_to_listen=queue_name, _contact_serial_list=_contact_serial_list,
+                                             ip_country="FR", limit=0)
     print("{} set_up_connection".format(threading.currentThread().name))
     receiver.set_up_connection()
     receiver.listen_to_queue(receiver.on_message)
@@ -213,7 +218,7 @@ def validate_all_links(_contact_serial_list):
     # _first_25_percent_links = all_link_list[0:(int(len(all_link_list) / divided))]
     _first_25_percent_links = all_link_list
     _queue_name = MORNING_DATA_CACHE
-    # # _queue_name = MORNING_DATA_CACHE_BAK
+    # _queue_name = MORNING_DATA_CACHE_BAK
     # if len(all_link_list) > divided * default_segment_number:
     #     _segment_number = default_segment_number
     # else:
@@ -223,7 +228,7 @@ def validate_all_links(_contact_serial_list):
     #     else:
     #         _segment_number = 1
     _thread_list = []
-    _segment_number =1
+    _segment_number = 1
     for i in range(0, _segment_number):
         logger.info("{}:{} links to validate".format(threading.currentThread().name, len(_first_25_percent_links)))
         logger.info("segment is {}".format(i))