Checker Plus for Gmail™

Name: Checker Plus for Gmail™
Rating: 4.3328 (616 reviews)
Author: Jason Savard

By: Jason Savard

Get notifications, read, listen to or delete emails without opening Gmail and easily manage multiple accounts.

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Features & Capabilities

Checker Plus for Gmail™ is a powerful Chrome extension that delivers instant Gmail notifications and fast email previews without opening Gmail. Rated 5 stars by over 1M users, it supports multiple Gmail and Google Workspace accounts, background push alerts, voice notifications, profile photos, Material Design UI, real-time sync across inboxes and labels, and quick actions (read, archive, mark as read, delete) directly from the popup. It also supports the Chrome side panel and custom notification sounds.

Built with privacy-first principles, Checker Plus requires minimal permissions, receives regular updates, and includes an extensive FAQ plus fast personal tech support. Tons of customization, filter support, and contributions unlock extra features — and user feedback helps shape future updates.

User Growth & Download Statistics

Add-on Email Marketing Communication Accessibility Privacy & Security

By:

Daily users:

Rating:

Version:

36.1.5 Last updated: 2026-06-16

Version code:

6300618

Creation date:

2016-11-08

Risk:

Permissions:

Host permissions:

https://mail.google.com/

Content scripts matches:

mail.google.com

Size:

1.43MB

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-23

Compare stats and ranking:

Ranking

# 366 ▼ 4

Other rankings

#3 in Alerts & Updates

#6 in Social & Communication

#25 in Appearance

#1 in checker keyword 68

#1 in email keyword 67

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Other platforms

Checker Plus for Gmail™ (v36.2)

900,000 4.65

(12,687)

Checker Plus for Gmail™ (v36.1.5)

195,619 4.50

(87)

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:

Jason Savard

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/checker-plus-gmail/

Website:

https://jasonsavard.com/forum/categories/checker-plus-for-gmail-feedback

Permission Change History

2024-11-19: Version 29.0.3.1 → 29.0.8

Add Permissions: identity

2024-09-10: Version 28.0.3 → 29.0.1

Add Optional host permissions: https://*.googleusercontent.com/

2024-02-19: Version 24.4.2 → 25.0.8.1

Add Host permissions: https://mail.google.com/

Add Permissions: declarativeNetRequestWithHostAccess scripting

Remove Permissions: tts https://mail.google.com/ https://gmail.googleapis.com/*

Remove Optional permissions: webRequestBlocking https://*.googleusercontent.com/

2023-12-04: Version 24.3.4 → 24.4.2

Add Permissions: cookies

2022-10-25: Version 23.3 → 23.3.0.1

Add Permissions: https://gmail.googleapis.com/*

Remove Permissions: https://www.googleapis.com/*

User Reviews

User reviews describe Checker Plus for Gmail as a useful extension with strong notification features that help users stay updated on Gmail across the browser. However, privacy concerns and trust issues arise due to lack of open source status and potential data access, and there are complaints about account management and reliability, including a cap on free accounts and occasional failures when adding accounts.

Pros

Generally positive reception and quality across multiple reviews (described as impressive, excellent, or the best extension).
Notifies you of Gmail activity across the browser, helping you stay updated across screens.

Cons

Privacy and data access concerns; not open source.
Account management limitations and reliability issues when adding accounts, including a paid upgrade after a small number of accounts.

Recent reviews

me ha servido mucho

by Tu*****, 2026-06-08

does even use who would use such a bad thing

by Ca*****, 2026-06-06

by tr*****, 2026-06-06

View all user reviews ›

Is Checker Plus for Gmail™ 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.

Checker Plus for Gmail™ requires some sensitive permissions that could impact your browser and data security. 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.

Checker Plus for Gmail™ has earned a good reputation and can be trusted.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
Medium **** ********* *** ****** **** ****** ********* ********** *** *** ** ****** ** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* ** ****** ** ********
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