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WEB.DE MailCheck

Chrome extension by 1&1 Mail & Media GmbH · Productivity · Communication

  • Featured
  • Established publisher
  • Trader

A Chrome extension in Productivity · Communication with 90 000 users, an established extension.

Specific sites only: 10 match patterns.

What the developer says, and 2 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
90 000
Rating
3.4 (402 ratings)
Users, last 16 days
-10k
Rating, last 30 days
Not watched long enough to say
Version
8.0.6
Updated in the store
2024-07-19
Published
2013-01-11
Manifest
V3
Browser access
9 permissions, 10 site patterns

How it has moved

Users
-10k since 31.08
90k-100k · 4 readings
  1. 2026-08-31100k
  2. 2026-09-0690k
  3. 2026-09-1390k
  4. 2026-09-1590k
Rating
-0.012 since 31.08
reviewsrating 3.353-3.365 · 4 readings
  1. 2026-08-31reviews400rating3.365
  2. 2026-09-06reviews401rating3.359
  3. 2026-09-13reviews402rating3.353
  4. 2026-09-15reviews402rating3.353
Users
-10k since 31.08
90k-100k · 4 readings
  1. 2026-08-31100k
  2. 2026-09-0690k
  3. 2026-09-1390k
  4. 2026-09-1590k
Rating
-0.012 since 31.08
reviewsrating 3.353-3.365 · 4 readings
  1. 2026-08-31reviews400rating3.365
  2. 2026-09-06reviews401rating3.359
  3. 2026-09-13reviews402rating3.353
  4. 2026-09-15reviews402rating3.353

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 10 match patterns.

  • https://*.web.de/*
  • https://*.gmx.net/*
  • https://*.1und1.de/*
Show the remaining 7
  • https://*.uilogin.de/*
  • https://*.mail.com/*
  • https://accounts.google.com/*
  • https://www.googleapis.com/*
  • https://mail.google.com/*
  • https://*.live.com/*
  • *://localhost/*
  • See the address and title of every tab you have open tabs
  • Sign you in with a Google account identity
  • Run its own code on the pages it can access scripting
Show the remaining 6
  • Act on the current tab, but only after you click it activeTab
  • Schedule work to run later alarms
  • Add items to the right-click menu contextMenus
  • Show you notifications notifications
  • Run work in a hidden page offscreen
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

1&1 Mail & Media GmbH publishes 2 listings we track, 130k users between them. Listed website: web.de.

  1. mail.com MailCheck 1&1 Mail & Media GmbH · Productivity · Communication · published 2013-11-21 40k users ★ 4.0

Like this one

Listings the catalog judges closest in what they say they do.

  1. mail.com MailCheck Describes nearly the same job, with an established audience 40k users ★ 4.0
  2. Simple Gmail Checker Describes nearly the same job, smaller audience 12 users
  3. X-notifier Neo Describes nearly the same job, smaller audience 6k users ★ 2.8
  4. Mail-Pocket Describes nearly the same job, smaller audience 3 users
  5. Gmail Checker - Multi Account Gmail Notifier Describes nearly the same job, smaller audience 9k users ★ 4.3

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.