Visual Studio Extension for opening files on GitHub, GitLab, Gitea,Gitee, Bitbucket and AzureDevOps (dev.azure.com, visualstudio.com, tfs)
Right click on editor, if repository is hosted on GitHub, you can jump to master/current branch/current revision's blob page. If selecting line(single, range) in editor, jump with line number fragment.
Download from Visual Studio Gallery - Open on GitHub