Add service_args to Firefox WebDriver (SeleniumHQ#5421)

The Firefox Geckodirver Service accepts the service_args parameter, but there is no way of passing those service arguments from the Firefox WebDriver. Fixes SeleniumHQ#5420

Author: moiseshiraldo

py/selenium/webdriver/firefox/webdriver.py

@@ -56,7 +56,8 @@ class WebDriver(RemoteWebDriver):
  def __init__(self, firefox_profile=None, firefox_binary=None,
  timeout=30, capabilities=None, proxy=None,
  executable_path="geckodriver", options=None,
- log_path="geckodriver.log", firefox_options=None):
+ log_path="geckodriver.log", firefox_options=None,
+ service_args=None):
  """Starts a new local session of Firefox.
 
  Based on the combination and specificity of the various keyword
@@ -144,7 +145,10 @@ def __init__(self, firefox_profile=None, firefox_binary=None,
 
  if capabilities.get("marionette"):
  capabilities.pop("marionette")
- self.service = Service(executable_path, log_path=log_path)
+ self.service = Service(
+ executable_path,
+ service_args=service_args,
+ log_path=log_path)
  self.service.start()
 
  capabilities.update(options.to_capabilities())