ProtonMail (unofficial) for Google Chrome

ProtonMail - Receive Email Notifications with This Extension

What is ProtonMail?

With ProtonMail, you can send encrypted emails without the hassle. You can install this extension on your Chrome device. It provides access to your account settings, so you can decide what notifications you want to receive, or if you want to be notified of every new email. You can select on how often should the tool check for new mails.

ProtonMail is a free service. If you want to use it, you need to be at least 18 years of age. Use this extension responsibly.