CefSharp is a .NET wrapper for the Chromium Embedded Framework (CEF), which is an open-source project that allows developers to embed the Chromium web browser in their .NET applications. CefSharp provides a high-performance, lightweight solution for embedding web content in .NET desktop and server applications.

Here are some key features of CefSharp:

Supports the latest version of the Chromium web browser

Provides a flexible, event-driven API for interacting with the browser

Allows you to customize the appearance and behavior of the embedded browser

Supports JavaScript execution and provides access to the browser's DOM

Provides advanced debugging features for web developers

Allows you to easily save and load cookies, cache, and other data

Supports a wide range of platforms, including Windows, macOS, and Linux.

To use CefSharp in your C# project, you need to follow these steps:

Install the CefSharp NuGet package for your project. You can do this from within Visual Studio by right-clicking on your project in the Solution Explorer and selecting "Manage NuGet Packages". Search for "CefSharp" and install the appropriate package for your project.

Add the CefSharp.WinForms or CefSharp.Wpf namespace to your code, depending on whether you are building a Windows Forms or WPF application.

Create an instance of the ChromiumWebBrowser control and add it to your form or window. You can do this by dragging and dropping the control from the Toolbox in Visual Studio, or by creating a new instance of the control in code.

Set the URL property of the ChromiumWebBrowser control to the URL of the web page you want to display.

Use the various events and methods provided by the ChromiumWebBrowser control to interact with the embedded browser and customize its behavior. 

This will create a new ChromiumWebBrowser control that displays the Google homepage. The control is added to the main form of the application and set to fill the entire form. You can customize the behavior of the control by using its various events and methods, such as the LoadCompleted event or the ExecuteScriptAsync method.