old_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import, division, print_function, with_statement
  
  CHROME = 'Chrome'
  FIREFOX = 'FireFox'
  REMOTE = 'Remote'
  
  
new_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import, division, print_function, with_statement
  
  CHROME = 'Chrome'
  FIREFOX = 'Firefox'
  REMOTE = 'Remote'
  
  
subject: add firefox support