Extension Tracker

Mark Seen Youtube

Removed from the Chrome Web Store on 11 Nov 2026This extension is no longer available on the Chrome Web Store. It may have been removed by the developer or taken down by Google. It has left the store's daily lists, and the store no longer offers it for Chrome to install. The figures are as last seen on 17 Oct 2026.

20 users Rated 5.00 from 2 ratings Last updated 26 Oct 2025

By Ionut Drutu bdabopjbfbdljjmmcckaodpihbmnonpo Search Google ↗ Wayback Machine ↗ Wayback Machine, old store ↗ Last checked 17 Oct 2026, 01:06 UTC

The listing

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

Easily mark YouTube videos as watched.Summary from the listing
Developer
Ionut Drutu
Enhanced Safe Browsing
Not trusted. What this means →
Category
Productivity › Tools
First published
22 Oct 2025
Last updated
26 Oct 2025
Version
1.1.4
Size
37.66 KiB
Minimum Chrome
88
Languages
1 language

English

Users over time As shown on the Chrome Web Store
202224Tracking began 26 Sep 202626 Sep3 Oct10 Oct17 Oct2026-09-26: 24 users2026-10-17: 20 users20202224Tracking began26 Sep10 Oct2026-09-26: 24 users2026-10-17: 20 users20
Average rating
4.804.905.0026 Sep3 Oct10 Oct17 Oct5.004.804.905.0026 Sep10 Oct5.00
Number of ratings
226 Sep3 Oct10 Oct17 Oct2226 Sep10 Oct2
New version One point per check. Source: the extension's public Chrome Web Store listing.
Show the numbers
CheckedUsersRatingRatings
2026-10-17205.002
2026-09-26245.002
Users, 7 days
No change
since a week ago
Users, 30 days
−4
-16.7%
Rank
–
by users, of 292,131 extensions
In its category
–
of 115,641 in Tools

What changed

Every change found on a check, newest first

  1. Removed from the Chrome Web Store.

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 26 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
  • *://*.youtube.com/*youtube.com and its subdomains
Sites where it runs scripts
  • *://*.youtube.com/*youtube.com and its subdomains
Browser features
  • storageSave settings and data in your browser

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 17 Oct 2026, 01:06 UTC.

How we collect the data

Cite this page

Citation
Extension Tracker. “Mark Seen Youtube” (bdabopjbfbdljjmmcckaodpihbmnonpo). Chrome Web Store data, last checked 2026-10-17. https://extensiontracker.com/extension/bdabopjbfbdljjmmcckaodpihbmnonpo. Accessed 2026-11-13.
BibTeX
@misc{extensiontracker_bdabopjbfbdljjmmcckaodpihbmnonpo,
  title   = {Mark Seen Youtube (bdabopjbfbdljjmmcckaodpihbmnonpo)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-10-17},
  url     = {https://extensiontracker.com/extension/bdabopjbfbdljjmmcckaodpihbmnonpo},
  urldate = {2026-11-13}
}

The data is free to reuse under CC BY 4.0.

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