Our recommendation:

Safer Firefox with MailCheck!

  • Faster website loading

  • Safely surf the internet
  • GMX MailCheck included
firefox with mailcheck

Great features for more fun surfing the web:


Fast. And really good.

Save time by doing everything faster.

Install for free

firefox with mailcheck included

MailCheck included

Quick access to your GMX and mail.com inboxes and many others.

Install for free

firefox sync between android smartphone and tablet

Synchronize with your devices

All of your bookmarks are saved across Android devices, whether smartphone or tablet.

Install for free

Mozilla Firefox download

Mozilla Firefox download

  • GMX homepage: Quick daily news and updates
  • GMX MailCheck: Quick access to your inbox
  • GMX Search
  • All add-ons are tested and authorized by Mozilla

Smart address bar

Modzilla autofill feature helps you find your favorite websites, even if you don't remember the internet address.

Bookmark button

With just the click of a button, you can view and manage your bookmarks. You won't have to look for long!

Password manager

The first time you log in to a site you can choose to save that password - Firefox will take care of the rest.

Practical add-ons

Firefox supports many add-ons which can help customize and optimize your internet use.

Mozilla Firefox:

This download is based on the most recently released version 85.0 of Mozilla Firefox. Technical issues with the software cannot be completely ruled out. Mozilla Firefox runs on Windows 7 and newer. Mozilla, Firefox and the Firefox logo are registered trademarks of the Mozilla Foundation.