Checkout CefSharp .Net bindings, a project I started a while back that thankfully got picked up by the community and turned into something wonderful.
The project wraps the Chromium Embedded Framework and has been used in a number of major projects including Rdio’s Windows client, Facebook Messenger for Windows and Github for Windows.
It features browser controls for WPF and Winforms and has tons of features and extension points. Being based on Chromium it’s blisteringly fast too.
Grab it from NuGet: dotnet add package CefSharp.Wpf or dotnet add package CefSharp.WinForms
Check out examples and give your thoughts/feedback/pull-requests: https://github.com/cefsharp/CefSharp
BSD Licensed