def __init__(
     self,
     browser_name: Optional[str] = None,
     vendor_prefix: Optional[str] = None,
     options: Optional[ChromiumOptions] = None,
     service: Optional[ChromiumService] = None,
     keep_alive: bool = True,
 ) -> None:
     """Creates a new WebDriver instance of the ChromiumDriver. Starts the
     service and then creates new WebDriver instance of ChromiumDriver.
 
     :Args:
      - browser_name - Browser name used when matching capabilities.
      - vendor_prefix - Company prefix to apply to vendor-specific WebDriver extension commands.
      - options - this takes an instance of ChromiumOptions
      - service - Service object for handling the browser driver if you need to pass extra details
      - keep_alive - Whether to configure ChromiumRemoteConnection to use HTTP keep-alive.
     """
+    browser_name = browser_name or "chromium"
+    vendor_prefix = vendor_prefix or "goog"
 
     self.service = service if service else ChromiumService()
     options = options if options else ChromiumOptions()