This extension automatically redirects you to the US English version of Microsoft Docs articles. It helps when you live outside of the US and get often redirected to machine-translated versions of Docs, which are not as useful as the human-written English versions. For example trying to browse: https://docs.microsoft.com/cs-cz/aspnet/core/mvc/views/tag-helpers/authoring?view=aspnetcore-3.1 Will automatically redirect to: https://docs.microsoft.com/en-us/aspnet/core/mvc/views/tag-helpers/authoring?view=aspnetcore-3.1