Last update: 2024-02-01


I use Tutanota as my main email provider, and I don’t use their Desktop application, I prefer the browser, Firefox in this case. The problem is that every time I open my mail, I get a pop-up with a message from Firefox suggesting that Tutanota manages my mailto links. AND I DON’T WANT IT, you can click as many times as you like on the little cross, this pop-up will continue to appear, forever.

Mailto links are links on websites that, when clicked, open your default email client with a new email composition window. They are often used to provide a convenient way for users to send emails by clicking a link rather than copying an email address and pasting it into their email client.

So how do we solve this problem? Link to heading

This doesn’t just work with Tutanota, but with any email provider.

  1. Go to Firefox’s Advanced Preferences, enter about:config in your search bar.
  2. Accept the Risk and Continue
  3. Look for the parameter named network.protocol-handler.external.mailto.
  4. Change the value of this parameter to false by double clicking on it.

That’s it! No more annoying pop-ups when you open your mail.

I’ve created a new “idea” on Mozilla Connect and there is also a bug report on Bugzilla from 10 years ago that is still opened as today.