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Chrome extension by tsei.jp · Productivity · Tools

  • Established publisher

A Chrome extension in Productivity · Tools with 16 users, barely installed. Audience over the last 30 days: unchanged.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 2 screenshots

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

Users
16
Rating
5.0 (1 ratings)
Users, last 30 days
Unchanged
Rating, last 30 days
Steady over 30 days
Version
0.1.0
Updated in the store
2026-06-10
Published
2026-06-10
Manifest
V3
Browser access
2 permissions

How it has moved

Users
unchanged since 03.10
14-18 · 18 readings
  1. 2026-10-0515
  2. 2026-10-0817
  3. 2026-10-0918
  4. 2026-10-1317
  5. 2026-10-1615
  6. 2026-10-1816
  7. 2026-10-1915
  8. 2026-10-2014
  9. 2026-10-2118
  10. 2026-10-2217
  11. 2026-10-2418
  12. 2026-10-2517
  13. 2026-10-2618
  14. 2026-10-2816
  15. 2026-10-2915
  16. 2026-10-3016
  17. 2026-11-0115
  18. 2026-11-0216
Rating
unchanged since 03.10
reviewsrating 5.00 · 18 readings
  1. 2026-10-05reviews1rating5.00
  2. 2026-10-08reviews1rating5.00
  3. 2026-10-09reviews1rating5.00
  4. 2026-10-13reviews1rating5.00
  5. 2026-10-16reviews1rating5.00
  6. 2026-10-18reviews1rating5.00
  7. 2026-10-19reviews1rating5.00
  8. 2026-10-20reviews1rating5.00
  9. 2026-10-21reviews1rating5.00
  10. 2026-10-22reviews1rating5.00
  11. 2026-10-24reviews1rating5.00
  12. 2026-10-25reviews1rating5.00
  13. 2026-10-26reviews1rating5.00
  14. 2026-10-28reviews1rating5.00
  15. 2026-10-29reviews1rating5.00
  16. 2026-10-30reviews1rating5.00
  17. 2026-11-01reviews1rating5.00
  18. 2026-11-02reviews1rating5.00
Users
+5 since 31.08
11-18 · 30 readings
2026-10-01: gained the good publisher record badge
  1. 2026-08-3111
  2. 2026-09-0212
  3. 2026-09-0613
  4. 2026-09-0712
  5. 2026-09-0813
  6. 2026-09-1314
  7. 2026-09-1515
  8. 2026-09-1714
  9. 2026-09-2115
  10. 2026-09-2214
  11. 2026-09-2617
  12. 2026-09-2816
  13. 2026-10-0515
  14. 2026-10-0817
  15. 2026-10-0918
  16. 2026-10-1317
  17. 2026-10-1615
  18. 2026-10-1816
  19. 2026-10-1915
  20. 2026-10-2014
  21. 2026-10-2118
  22. 2026-10-2217
  23. 2026-10-2418
  24. 2026-10-2517
  25. 2026-10-2618
  26. 2026-10-2816
  27. 2026-10-2915
  28. 2026-10-3016
  29. 2026-11-0115
  30. 2026-11-0216
Rating
unchanged since 31.08
reviewsrating 5.00 · 30 readings
2026-10-01: gained the good publisher record badge
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-06reviews1rating5.00
  4. 2026-09-07reviews1rating5.00
  5. 2026-09-08reviews1rating5.00
  6. 2026-09-13reviews1rating5.00
  7. 2026-09-15reviews1rating5.00
  8. 2026-09-17reviews1rating5.00
  9. 2026-09-21reviews1rating5.00
  10. 2026-09-22reviews1rating5.00
  11. 2026-09-26reviews1rating5.00
  12. 2026-09-28reviews1rating5.00
  13. 2026-10-05reviews1rating5.00
  14. 2026-10-08reviews1rating5.00
  15. 2026-10-09reviews1rating5.00
  16. 2026-10-13reviews1rating5.00
  17. 2026-10-16reviews1rating5.00
  18. 2026-10-18reviews1rating5.00
  19. 2026-10-19reviews1rating5.00
  20. 2026-10-20reviews1rating5.00
  21. 2026-10-21reviews1rating5.00
  22. 2026-10-22reviews1rating5.00
  23. 2026-10-24reviews1rating5.00
  24. 2026-10-25reviews1rating5.00
  25. 2026-10-26reviews1rating5.00
  26. 2026-10-28reviews1rating5.00
  27. 2026-10-29reviews1rating5.00
  28. 2026-10-30reviews1rating5.00
  29. 2026-11-01reviews1rating5.00
  30. 2026-11-02reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab

The full permission history for this extension

What changed recently

  1. Gained the Established publisher badge

The publisher

tsei.jp. Listed website: tsei.jp.

Like this one

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

  1. OPFS Explorer Describes nearly the same job, smaller audience 1k users ★ 5.0
  2. OPFS Explorer Describes nearly the same job, smaller audience 9k users ★ 4.2
  3. OPFS Viewer Describes nearly the same job, smaller audience 199 users ★ 3.0
  4. OPFS Viewer Describes nearly the same job, smaller audience 80 users ★ 3.0
  5. File Explorer Pro Describes nearly the same job, smaller audience 23 users

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.

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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/ahfcfclmenbjkcjblcienilfojngdnnm/badge.svg)](https://extops.dev/extensions/ahfcfclmenbjkcjblcienilfojngdnnm)

HTML

<a href="https://extops.dev/extensions/ahfcfclmenbjkcjblcienilfojngdnnm"><img src="https://extops.dev/extensions/ahfcfclmenbjkcjblcienilfojngdnnm/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-02. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built