Extension Tracker

Mail Seen - Unlimited Email Tracker for Yahoo

1,000 users Rated 4.57 from 23 ratings Last updated 14 Jun 2025

By Mobile Internet Limited Live in the Chrome Web Store jpgfcabgippppbekoebfkkfnglokabcd Search Google ↗ Last checked 11 Nov 2026, 13:36 UTC

The listing

What the Chrome Web Store shows, as of the last check

Know when your emails are opened!Summary from the listing
Developer
Mobile Internet Limited
Enhanced Safe Browsing
Trusted. What this means →
Category
Productivity › Communication
First published
14 Feb 2025
Last updated
14 Jun 2025
Version
1.6
Size
183 KiB
Minimum Chrome
88
Languages
1 language

English

Website
mailseen.com
See Chrome Web Store page ↗ View its code or download CRX ↗
Users over time As shown on the Chrome Web Store
9801K1.02KTracking began 27 Sep 202627 Sep4 Oct11 Oct18 Oct25 Oct1 Nov8 Nov2026-09-27: 1,000 users2026-09-29: 1,000 users2026-10-06: 1,000 users2026-10-14: 1,000 users2026-10-21: 1,000 users2026-10-29: 1,000 users2026-11-04: 1,000 users2026-11-11: 1,000 users1,0009801K1.02KTracking began27 Sep18 Oct8 Nov2026-09-27: 1,000 users2026-09-29: 1,000 users2026-10-06: 1,000 users2026-10-14: 1,000 users2026-10-21: 1,000 users2026-10-29: 1,000 users2026-11-04: 1,000 users2026-11-11: 1,000 users1K
Average rating
4.504.6027 Sep11 Oct25 Oct8 Nov4.574.504.6027 Sep18 Oct8 Nov4.57
Number of ratings
21222327 Sep11 Oct25 Oct8 Nov2321222327 Sep18 Oct8 Nov23
New version One point per check. Source: the extension's public Chrome Web Store listing.
Show the numbers
CheckedUsersRatingRatings
2026-11-111,0004.5723
2026-11-041,0004.5221
2026-10-291,0004.5221
2026-10-211,0004.5221
2026-10-141,0004.5221
2026-10-061,0004.5221
2026-09-291,0004.5221
2026-09-271,0004.5221
Users, 7 days
No change
since a week ago
Users, 30 days
No change
+0.0%
Rank
#17,862
by users, of 292,131 extensions
In its category
#289
of 7,816 in Communication

What changed

Every change found on a check, newest first

No changes found since tracking began on 27 Sep 2026.

Developer history

Moves to another publisher account and new contact emails, newest first

No move to another account and no new contact email since tracking began on 27 Sep 2026.

We know contact emails only by a keyed hash, so they're never shown. Recent account and contact changes →

What it can access

From the extension's manifest, in plain language

Sites
  • https://authapi-f6o7ittoia-uc.a.run.app/authapi-f6o7ittoia-uc.a.run.app
  • https://mail.yahoo.com/mail.yahoo.com
Sites where it runs scripts
  • https://mail.yahoo.com/*mail.yahoo.com
Browser features
  • declarativeNetRequestBlock or change network requests, using rules
  • declarativeNetRequestFeedbackSee which of its network rules matched

More from this developer

Other extensions from the same publisher account

ExtensionUsersRatingRatingsCategory
Mail Seen - Unlimited Email Tracker for Gmail6,000 4.77201 Workflow & Planning
Mail Seen - Unlimited Email Tracker for Outlook435 5.006 Communication
All 3 extensions by Mobile Internet Limited →

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 11 Nov 2026, 13:36 UTC; next check around 18 Nov 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Mail Seen - Unlimited Email Tracker for Yahoo” (jpgfcabgippppbekoebfkkfnglokabcd). Chrome Web Store data, last checked 2026-11-11. https://extensiontracker.com/extension/jpgfcabgippppbekoebfkkfnglokabcd. Accessed 2026-11-13.
BibTeX
@misc{extensiontracker_jpgfcabgippppbekoebfkkfnglokabcd,
  title   = {Mail Seen - Unlimited Email Tracker for Yahoo (jpgfcabgippppbekoebfkkfnglokabcd)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-11},
  url     = {https://extensiontracker.com/extension/jpgfcabgippppbekoebfkkfnglokabcd},
  urldate = {2026-11-13}
}

The data is free to reuse under CC BY 4.0.

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