Enterprise Sign In with Chrome against Windows

I'm having difficultly signing into my Microsoft enterprise account. When I finish signing into my enterprise, I am given the following result.

When you click on "extensions" you go to the next image.

You can see the Windows Accounts extension is greyed out because this sign-in portal isn't chrome. So I can't sign in because it's a chrome portal and I can't pass my enterprise security because it's not chrome. Any guidance would be appreciated. Thanks.