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Checker Plus for Gmail™

Chrome extension by JasonSavard.com · Productivity · Workflow

  • Featured
  • Established publisher
  • Trader

A Chrome extension in Productivity · Workflow with 1 000 000 users, one of the largest listings in the store.

Specific sites only: 1 match pattern.

What the developer says, and 5 screenshots

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

Users
1 000 000
Rating
4.7 (12 713 ratings)
Users, last 10 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
36.4
Updated in the store
2026-08-17
Published
2011-12-15
Manifest
V3
Browser access
15 permissions, 1 site pattern

How it has moved

Users
unchanged since 31.08
1M · 3 readings
  1. 2026-08-311M
  2. 2026-09-041M
  3. 2026-09-091M
Rating
unchanged since 31.08
reviewsrating 4.65 · 3 readings
  1. 2026-08-31reviews12.7krating4.65
  2. 2026-09-04reviews12.7krating4.65
  3. 2026-09-09reviews12.7krating4.65
Users
unchanged since 31.08
1M · 3 readings
  1. 2026-08-311M
  2. 2026-09-041M
  3. 2026-09-091M
Rating
unchanged since 31.08
reviewsrating 4.65 · 3 readings
  1. 2026-08-31reviews12.7krating4.65
  2. 2026-09-04reviews12.7krating4.65
  3. 2026-09-09reviews12.7krating4.65

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: 1 match pattern.

  • https://mail.google.com/
  • Read and change cookies on the sites it can access cookies
  • Block or redirect requests on the sites it can access declarativeNetRequestWithHostAccess
  • Sign you in with a Google account identity
Show the remaining 12
  • Run its own code on the pages it can access scripting
  • 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
  • Receive push messages from its developer gcm
  • Tell whether you are away from the computer idle
  • Show you notifications notifications
  • Run work in a hidden page offscreen
  • Open a panel beside the page sidePanel
  • Store data in your browser storage
  • Read your display setup system.display
  • Speak text out loud tts

The full permission history for this extension

What changed recently

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

The publisher

JasonSavard.com publishes 6 listings we track, 1.5M users between them. Listed website: jasonsavard.com.

  1. Checker Plus for Google Calendar™ JasonSavard.com · Productivity · Workflow · published 2010-06-11 300k users ★ 4.4
  2. Explain and Send Screenshots JasonSavard.com · Productivity · Tools · published 2010-04-12 100k users ★ 4.2
  3. Webmail Ad Blocker JasonSavard.com · Productivity · Workflow · published 2010-01-22 90k users ★ 4.5
Show 2 more from this publisher
  1. Checker Plus for Google Drive™ JasonSavard.com · Productivity · Workflow · published 2012-10-15 30k users ★ 4.4
  2. Recent Tabs JasonSavard.com · Productivity · Tools · published 2010-02-20 20k users ★ 3.6

Like this one

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

  1. Simple Gmail Checker Describes nearly the same job, smaller audience 11 users
  2. Video Email Alert Describes nearly the same job, smaller audience 5 users
  3. Gmail Checker - Multi Account Gmail Notifier Describes nearly the same job, smaller audience 9k users ★ 4.3
  4. Gmail Notifications Describes nearly the same job, smaller audience 1k users ★ 4.9
  5. Email Checker for Gmail™ Describes nearly the same job, smaller audience 29 users ★ 5.0

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?

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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.