Proton

When Proton Mail 4.0 is released later this year, we will no longer support Internet Explorer (IE), including the newest version, IE 11. Anyone trying to access Proton Mail from IE after the update will be prompted to switch browsers. In this article, we explain the reasons for dropping IE as well as recommendations for alternative browsers.

Why Proton Mail no longer supports Internet Explorer

The decision to drop IE support comes after Microsoft (new window)announced it would no longer support older versions of the browser. Other services are phasing out IE for many of the same reasons we are. Considering the security risks, development costs, compatibility issues, and the small number of people using IE, we are confident this is the right time to drop IE support.

There are many reasons we will no longer support IE, including:

  • Almost none of our users run it. About 1% of Proton Mail traffic comes from IE.
  • We are not confident that IE 11 is a secure browser. Microsoft is diverting resources to focus on Edge, and fewer developers are testing for it. More bugs or vulnerabilities are inevitable.
  • We have an ambitious schedule of upcoming products and features, including calendar and encrypted cloud storage. We would rather use our developer resources to improve Proton rather than fix bugs for an outdated browser.

It is likely that IE will still be around for some time. Microsoft has promised to continue supporting and updating IE 11 as long as it still supports Windows 10. That said, Microsoft’s own cybersecurity experts said(new window), “We’re not supporting new web standards for it and, while many sites work fine, developers by and large just aren’t testing for Internet Explorer these days.”

What to do if you use Internet Explorer

Proton Mail supports all modern browsers, such as Chrome, Firefox, Safari, and Edge. If you prefer to or you are required to continue using a Microsoft browser, you can use Edge(new window).

There are also many privacy-focused browsers, such as Firefox(new window) and Brave(new window).

If you have questions regarding this switch, please get in touch with our support team.

Best Regards,
The Proton Mail Team

You can get a free secure email account(new window) from Proton Mail.

We also provide a free VPN service(new window) to protect your privacy.

Proton Mail and Proton VPN are funded by community contributions. If you would like to support our development efforts, you can upgrade to a paid plan. Thank you for your support.



Related articles

Learn what you're exposing yourself to when you use temporary email services like 10-Minute Mail
en
Learn what you're exposing yourself to when you use temporary email services like 10-Minute Mail — and why an alias is a better way to protect your privacy.
Is deepseek safe
en
  • Privacy news
Not only does DeepSeek collect extensive personal information, but it cannot legally resist government demands for access to that data.
The cover image for a Proton Pass blog explaining how a family password manager can save parents time - the image shows three password fields on top of each other with a security shield shape containing two adult figures and one child figure
en
Tired of resetting passwords for your family? Find out how a family password manager can help you save time on password admin.
what does bcc mean in email
en
What is BCC in email language? Here's what BCC means, how it works, and when and why you might want to use it.
President Trump is now at the head of the US warrantless surveillance machine
en
President Trump now controls of the US government's warrantless surveillance machine. We look at how it works and how to defend yourself.
en
See our predictions for the internet in 2025, from AI cyberattacks to DIY surveillance.