If you are ending with errors while logging in to Visual Studio (2015 or 2017) with your Microsoft subscription account with error message “Cookies are blocked, cannot login”. Then below is setting change you need to do in “Internet Options” to resolve it.
Visual studio always used internet engine for internet connectivity and I didn’t find any way to change it to use to Mozilla or any other internet engine.
Below change in “Internet Options” setting prompts to accept cookies and this resolved the issue.
After changing, try to login, you we will prompted to accept cookie couple of times. This will resolve the issue
Techy Chalkboard in bits and pieces 
You must be logged in to post a comment.