All certificates (Codesign and SSL) can be managed with the application DigiCertUtil.exe.

When you buy a cert, you often only get a cert file.

Importing is no problem, but exporting it as pfx is impossible in std windows. Use DigiCertUtil for this.

For developing, use localhost.

To allow Chrome to bypass the need for a valid certificate, enter this into the browser for https/SSL:

chrome://flags/#allow-insecure-localhost