GMX.com MailCheck for USA, CA, UK, FR and ES

Name: GMX.com MailCheck for USA, CA, UK, FR and ES
Rating: 3.7059 (17 reviews)
Author: 1&1 Mail & Media GmbH

By: 1&1 Mail & Media GmbH

The fast and secure click to your GMX International inbox.

GMX.com MailCheck for USA, CA, UK, FR and ES

Download

Install

Features & Capabilities

GMX.com MailCheck is designed specifically for GMX international users from USA, Canada, UK, France, and Spain, providing a fast and secure way to access your inbox. Enjoy features like real-time email notifications directly in your browser and desktop, one-click reading and composing of emails, and the ability to delete unwanted messages from the preview panel.

This extension supports multiple GMX domains including gmx.com, gmx.fr, gmx.es, gmx.co.uk, mail.com, and even Outlook integration, consolidating all your email accounts into one accessible tool. The connection uses encrypted SSL and password protection to ensure maximum security. Note that email accounts from Germany, Austria, and Switzerland are not supported with this version.

User Growth & Download Statistics

Add-on Communication Privacy & Security

By:

1&1 Mail & Media GmbH

Daily users:

1,704 23

Rating:

3.71

(17)

Version:

6.5.5 Last updated: 2023-11-20

Version code:

5653059

Creation date:

2019-07-09

Risk:

Permissions:

Content scripts matches:

*.web.de
*.gmx.net
*.gmx.de
*.gmx.ch
*.gmx.at
*.gmx.com
*.mail.com
*.1und1.de
*.1and1.com
search.gmx.com

Size:

2.39MB

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-23

Compare stats and ranking:

Ranking

# 2,382 ▲ 37

Other rankings

#63 in Alerts & Updates ▲ 1

#32 in usb keyword 12 ▲ 1

#35 in switzerland keyword 1

#48 in inbox keyword 23

#66 in password-protected keyword 53

Upgrade to see more rankings

Other platforms

GMX.com MailCheck (v8.0.6)

9,000 4.17

(48)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

1&1 Mail & Media GmbH

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/gmx-com-mailcheck/

Website:

https://support.gmx.com/

User Reviews

Pros

Useful and functional interface for checking emails
Displays a list of incoming emails
Combines email management with webmail access

Cons

Frequent sign-in issues and instability
Inability to preview emails or directly access them through the add-on
Limited functionalities, lacking features like starring emails
Not supporting all GMX domains, such as gmx.us

Recent reviews

satisfait de GMX

by Fi*****, 2026-05-17

by 敬念*****, 2025-02-11

I can't sign in at all. Even though my gmx.com domain is signed in on the web, mailcheck refuses to sign me in. And there is no error code either.

by So*****, 2024-12-16

View all user reviews ›

Is GMX.com MailCheck for USA, CA, UK, FR and ES Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

GMX.com MailCheck for USA, CA, UK, FR and ES requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

GMX.com MailCheck for USA, CA, UK, FR and ES has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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