"""Handle nicovideo.jp user_session."""
#  Copyright 2015-2016 Masayuki Yamamoto
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

@@ -617,20 +617,130 @@
  under the License.%0A
+%0A%0Aclass UserSessionNotFoundError(Exception):%0A    %22%22%22Firefox profile exists, buf user_session is not found.%22%22%22%0A

Add UserSessionNotFoundError exception