How to Change Google Chrome User Agent in Selenium with C#

By FoxLearn 12/9/2024 9:59:53 AM   60
To change the user agent in Google Chrome when using Selenium in C#, you'll need to use the ChromeOptions class to set the custom user agent string, and then pass those options when launching the Chrome browser.

Steps to Change the User Agent in Chrome with Selenium in C#

You can install the Selenium WebDriver for C# via NuGet.

Install-Package Selenium.WebDriver
Install-Package Selenium.WebDriver.ChromeDriver

Next, Use the ChromeOptions class to add a custom user agent.

// Create an instance of ChromeOptions
ChromeOptions options = new ChromeOptions();

// Set the custom user agent string
string userAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36";
options.AddArgument($"user-agent={userAgent}");

// Initialize the Chrome WebDriver with the specified options
IWebDriver driver = new ChromeDriver(options);

// Navigate to a website to verify the user agent
driver.Navigate().GoToUrl("https://www.foxlearn.com");

// Wait for user input to close the browser
Console.WriteLine("Press any key to close the browser...");
Console.ReadKey();

// Close the browser
driver.Quit();

Creates a new instance of ChromeOptions and sets the custom user agent string using the AddArgument method.