ChromeOptionsAddExtensions Method (String)WebDriver
Adds a list of paths to packed Chrome extensions (.crx files) to be installed in the instance of Chrome.

Namespace: OpenQA.Selenium.Chrome
Assembly: WebDriver (in WebDriver.dll) Version: 3.1.0
Syntax

public void AddExtensions(
	params string[] extensions
)

Parameters

extensions
Type: SystemString
An array of full paths to the extensions to add.
See Also

Reference