- By:
- 1&1 Mail & Media GmbH
- Daily users:
- 21,543 -128
- Rating:
- 3.06 (126)
- Version:
- 8.0.17 Last updated: 2024-12-05
- Version code:
- 5850587
- Creation date:
- 2012-05-21
- Risk:
- Very high risk impact Moderate risk likelihood
- Permissions:
- activeTab
- tabs
- storage
- management
- notifications
- contextMenus
- identity
- search
- https://*.web.de/*
- activeTab
- Size:
- 2.48M
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Browser Add-ons
- Updated:
- a day ago
Ranking
# 488
Other platforms
User reviews
Pros
- Allows immediate viewing of email counts for different addresses
- Generally works well for supported email accounts
- Simple and user-friendly for basic email notifications
Cons
- Does not support certain 1und1 domain endings like online.de, onlinehome.de, and e-mail.de, causing inconvenience
- Frequent false password change requirements due to VPN usage being flagged as suspicious by WEB.DE
- Compatibility issues with the latest Firefox versions, with some users experiencing 'unsupported browser' errors preventing access
- The add-on resets the default search engine to web.de without clear consent, raising privacy and legal concerns
- Adding multiple email accounts can fail without feedback, making management difficult
Recent reviews
by Fi*****, 2025-03-23
by 天灭*****, 2025-02-15
Muss andauernd mein Passwort ändern, weil Web.de VPNs nicht kennt und es anscheinend als verdächtige Aktivität aufnimmt, wenn man mit einem VPN ins Mailkonto geht...
Dem Support habe ich dieses Anliegen UMFASSEND geschildert und als Antwort kam sinngemäß "Wir können ihn leider nicht weiterhelfen"...
keine Worte...
by Li*****, 2024-11-22
Extension safety
Risk impact
WEB.DE MailCheck for Firefox 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.
- Critical ******* ****** ** *** ********* ******** ********************
- High *** ****** ****** ********** ***** ***** ******** ******** ** ********* ****** ****** ******** *****
- High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
- Medium ******* ***** *********** ***** ****** ********* *** ***** ********* **** **** ************** *** ********
- Medium ******* ******* ************* ***** *** ** ******* *** **** ******* ****** ******** *******
Risk likelihood
WEB.DE MailCheck for Firefox is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
Risk likelihood analysis details
- Medium This extension has medium user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details
Compare add-ons
- Compare WEB.DE MailCheck for Firefox vs GMX MailCheck for Firefox
- Compare WEB.DE MailCheck for Firefox vs mail.com MailCheck
- Compare WEB.DE MailCheck for Firefox vs Email Notifier
Similar add-ons
Here are some Firefox add-ons that are similar to WEB.DE MailCheck for Firefox:

GMX MailCheck for Firefox
1&1 Mail & Media GmbH

mail.com MailCheck
1&1 Mail & Media GmbH

Email Notifier
Morni

Unread Email Notifier
Phung Anh

Gmail™ Notifier (restartless)
InBasic

Gmail Notifier
PANKAJ ASWAL

Yahoo Mail Notifier
Cobb

Gmail Mail Sidebar
Baris Derin

Easy Log-in to Webmail
Keitaro Yamashita
Popular extensions / apps
Here are some popular extensions / apps that you might be interested in:
Temu: Shop Like a Billionaire
Temu

Adblock Plus
Adblock Plus
StayFocusd - Block Distracting Websites & Web Analytics
https://stayfocusd.com
School Party Craft
Candy Room Games & RabbitCo
My Cafe — Restaurant Game
Melsoft Games Ltd
uBlock Origin Lite
Raymond Hill (gorhill)
Google Calendar
Google LLC
Dashlane — Password Manager
https://dashlane.com
NordPass® Password Manager & Digital Vault
NordPass
Dark Reader
alexanderby
Enhancer for YouTube™
Maxime RF
Karma | Online shopping, but better
https://karmanow.com