old_contents: from lettuce import before, after, world
  from splinter.browser import Browser
  from logging import getLogger
  import time
  
  logger = getLogger(__name__)
  logger.info("Loading the lettuce acceptance testing terrain file...")
  
  from django.core.management import call_command
  
  
  @before.harvest
  def initial_setup(server):
      # Launch the browser app (choose one of these below)
      # world.browser = Browser('chrome')
      world.browser = Browser('phantomjs')
      # world.browser = Browser('firefox')
  
  
  @before.each_scenario
  def reset_data(scenario):
      # Clean out the django test database defined in the
      # envs/acceptance.py file: mitx_all/db/test_mitx.db
      logger.debug("Flushing the test database...")
      call_command('flush', interactive=False)
  
  
  @after.all
  def teardown_browser(total):
      # Quit firefox
      world.browser.quit()
      pass
  
new_contents: from lettuce import before, after, world
  from splinter.browser import Browser
  from logging import getLogger
  import time
  
  logger = getLogger(__name__)
  logger.info("Loading the lettuce acceptance testing terrain file...")
  
  from django.core.management import call_command
  
  
  @before.harvest
  def initial_setup(server):
      # Launch the browser app (choose one of these below)
      world.browser = Browser('chrome')
      # world.browser = Browser('phantomjs')
      # world.browser = Browser('firefox')
  
  
  @before.each_scenario
  def reset_data(scenario):
      # Clean out the django test database defined in the
      # envs/acceptance.py file: mitx_all/db/test_mitx.db
      logger.debug("Flushing the test database...")
      call_command('flush', interactive=False)
  
  
  @after.all
  def teardown_browser(total):
      # Quit firefox
      world.browser.quit()
      pass
  
subject: Change default browser for lettuce back to chrome.