Ext Ops Panel
Open dashboard

Knock & Pop

Chrome Web Store listing by JavaFactory

A Chrome extension with 40 users, barely installed. Audience over the last 30 days: -8.

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

What the developer says, and 5 screenshots

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

Users
40
Rating
2.3 (3 ratings)
Users, last 30 days
-8
Rating, last 30 days
Steady over 30 days
Version
1.0.1
Updated in the store
2012-07-10
Published
2011-01-02
Manifest
V2
Browser access
No permissions declared

How it has moved

Users
-8 since 12.10
37-49 · 21 readings
  1. 2026-10-1347
  2. 2026-10-1648
  3. 2026-10-1746
  4. 2026-10-1849
  5. 2026-10-1948
  6. 2026-10-2046
  7. 2026-10-2239
  8. 2026-10-2337
  9. 2026-10-2441
  10. 2026-10-2540
  11. 2026-10-2841
  12. 2026-10-2943
  13. 2026-10-3045
  14. 2026-11-0145
  15. 2026-11-0441
  16. 2026-11-0642
  17. 2026-11-0740
  18. 2026-11-0841
  19. 2026-11-0938
  20. 2026-11-1039
  21. 2026-11-1140
Rating
unchanged since 12.10
reviewsrating 2.33 · 21 readings
  1. 2026-10-13reviews3rating2.33
  2. 2026-10-16reviews3rating2.33
  3. 2026-10-17reviews3rating2.33
  4. 2026-10-18reviews3rating2.33
  5. 2026-10-19reviews3rating2.33
  6. 2026-10-20reviews3rating2.33
  7. 2026-10-22reviews3rating2.33
  8. 2026-10-23reviews3rating2.33
  9. 2026-10-24reviews3rating2.33
  10. 2026-10-25reviews3rating2.33
  11. 2026-10-28reviews3rating2.33
  12. 2026-10-29reviews3rating2.33
  13. 2026-10-30reviews3rating2.33
  14. 2026-11-01reviews3rating2.33
  15. 2026-11-04reviews3rating2.33
  16. 2026-11-06reviews3rating2.33
  17. 2026-11-07reviews3rating2.33
  18. 2026-11-08reviews3rating2.33
  19. 2026-11-09reviews3rating2.33
  20. 2026-11-10reviews3rating2.33
  21. 2026-11-11reviews3rating2.33
Users
-6 since 01.09
37-49 · 38 readings
  1. 2026-09-0146
  2. 2026-09-0245
  3. 2026-09-0446
  4. 2026-09-0542
  5. 2026-09-0640
  6. 2026-09-0739
  7. 2026-09-0937
  8. 2026-09-1343
  9. 2026-09-1544
  10. 2026-09-1646
  11. 2026-09-2049
  12. 2026-09-2545
  13. 2026-09-2643
  14. 2026-09-2842
  15. 2026-10-0546
  16. 2026-10-0849
  17. 2026-10-1048
  18. 2026-10-1347
  19. 2026-10-1648
  20. 2026-10-1746
  21. 2026-10-1849
  22. 2026-10-1948
  23. 2026-10-2046
  24. 2026-10-2239
  25. 2026-10-2337
  26. 2026-10-2441
  27. 2026-10-2540
  28. 2026-10-2841
  29. 2026-10-2943
  30. 2026-10-3045
  31. 2026-11-0145
  32. 2026-11-0441
  33. 2026-11-0642
  34. 2026-11-0740
  35. 2026-11-0841
  36. 2026-11-0938
  37. 2026-11-1039
  38. 2026-11-1140
Rating
unchanged since 01.09
reviewsrating 2.33 · 38 readings
  1. 2026-09-01reviews3rating2.33
  2. 2026-09-02reviews3rating2.33
  3. 2026-09-04reviews3rating2.33
  4. 2026-09-05reviews3rating2.33
  5. 2026-09-06reviews3rating2.33
  6. 2026-09-07reviews3rating2.33
  7. 2026-09-09reviews3rating2.33
  8. 2026-09-13reviews3rating2.33
  9. 2026-09-15reviews3rating2.33
  10. 2026-09-16reviews3rating2.33
  11. 2026-09-20reviews3rating2.33
  12. 2026-09-25reviews3rating2.33
  13. 2026-09-26reviews3rating2.33
  14. 2026-09-28reviews3rating2.33
  15. 2026-10-05reviews3rating2.33
  16. 2026-10-08reviews3rating2.33
  17. 2026-10-10reviews3rating2.33
  18. 2026-10-13reviews3rating2.33
  19. 2026-10-16reviews3rating2.33
  20. 2026-10-17reviews3rating2.33
  21. 2026-10-18reviews3rating2.33
  22. 2026-10-19reviews3rating2.33
  23. 2026-10-20reviews3rating2.33
  24. 2026-10-22reviews3rating2.33
  25. 2026-10-23reviews3rating2.33
  26. 2026-10-24reviews3rating2.33
  27. 2026-10-25reviews3rating2.33
  28. 2026-10-28reviews3rating2.33
  29. 2026-10-29reviews3rating2.33
  30. 2026-10-30reviews3rating2.33
  31. 2026-11-01reviews3rating2.33
  32. 2026-11-04reviews3rating2.33
  33. 2026-11-06reviews3rating2.33
  34. 2026-11-07reviews3rating2.33
  35. 2026-11-08reviews3rating2.33
  36. 2026-11-09reviews3rating2.33
  37. 2026-11-10reviews3rating2.33
  38. 2026-11-11reviews3rating2.33

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.

We have not read this listing's manifest since we started keeping permission names. The counts above come from the last time we did.

The full permission history for this extension

What changed recently

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

The publisher

JavaFactory. Listed website: javafactory.altervista.org.

Like this one

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

  1. Ball-Drop-Inator Describes nearly the same job, smaller audience 9 users
  2. Stupid Ball Game Describes nearly the same job, smaller audience 20 users ★ 3.0
  3. Bounce! Describes nearly the same job, smaller audience 10 users ★ 4.0
  4. Color Ball Crash Game Describes nearly the same job, smaller audience 527 users ★ 5.0
  5. The Block King Game Describes nearly the same job, smaller audience 13 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.

Want this mark on your extension in our catalog?

Verify that you are its author and you can show this mark on the card, with live banners for your site and README. How verification works

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

Add a badge to your README or site

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/fndjalbjggmcidadonmjifmcokflkpoa/badge.svg)](https://extops.dev/extensions/fndjalbjggmcidadonmjifmcokflkpoa)

HTML

<a href="https://extops.dev/extensions/fndjalbjggmcidadonmjifmcokflkpoa"><img src="https://extops.dev/extensions/fndjalbjggmcidadonmjifmcokflkpoa/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 2026-11-11. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built