Ext Ops Panel
Open dashboard

Dumbload (Free Video Downloader)

Chrome extension by Master Tools · Productivity · Tools

A Chrome extension in Productivity · Tools with 383 users, barely installed. Audience over the last 30 days: -15.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 1 screenshot

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

Users
383
Rating
3.0 (4 ratings)
Users, last 30 days
-15
Rating, last 30 days
Steady over 30 days
Version
0.1.2
Updated in the store
2024-10-01
Published
2024-08-30
Manifest
V3
Browser access
7 permissions, 1 site pattern

How it has moved

Users
-15 since 11.10
370-398 · 15 readings
  1. 2026-10-13396
  2. 2026-10-16389
  3. 2026-10-18383
  4. 2026-10-19382
  5. 2026-10-21383
  6. 2026-10-22380
  7. 2026-10-23386
  8. 2026-10-25389
  9. 2026-10-27387
  10. 2026-10-29379
  11. 2026-11-01370
  12. 2026-11-03384
  13. 2026-11-05388
  14. 2026-11-07388
  15. 2026-11-09383
Rating
unchanged since 11.10
reviewsrating 3.00 · 15 readings
  1. 2026-10-13reviews4rating3.00
  2. 2026-10-16reviews4rating3.00
  3. 2026-10-18reviews4rating3.00
  4. 2026-10-19reviews4rating3.00
  5. 2026-10-21reviews4rating3.00
  6. 2026-10-22reviews4rating3.00
  7. 2026-10-23reviews4rating3.00
  8. 2026-10-25reviews4rating3.00
  9. 2026-10-27reviews4rating3.00
  10. 2026-10-29reviews4rating3.00
  11. 2026-11-01reviews4rating3.00
  12. 2026-11-03reviews4rating3.00
  13. 2026-11-05reviews4rating3.00
  14. 2026-11-07reviews4rating3.00
  15. 2026-11-09reviews4rating3.00
Users
-1 since 31.08
370-399 · 35 readings
  1. 2026-08-31384
  2. 2026-09-02389
  3. 2026-09-03392
  4. 2026-09-05390
  5. 2026-09-06391
  6. 2026-09-07386
  7. 2026-09-08384
  8. 2026-09-09385
  9. 2026-09-13394
  10. 2026-09-15387
  11. 2026-09-16394
  12. 2026-09-20382
  13. 2026-09-21380
  14. 2026-09-25384
  15. 2026-09-27389
  16. 2026-09-28391
  17. 2026-10-04399
  18. 2026-10-08395
  19. 2026-10-09396
  20. 2026-10-10398
  21. 2026-10-13396
  22. 2026-10-16389
  23. 2026-10-18383
  24. 2026-10-19382
  25. 2026-10-21383
  26. 2026-10-22380
  27. 2026-10-23386
  28. 2026-10-25389
  29. 2026-10-27387
  30. 2026-10-29379
  31. 2026-11-01370
  32. 2026-11-03384
  33. 2026-11-05388
  34. 2026-11-07388
  35. 2026-11-09383
Rating
unchanged since 31.08
reviewsrating 3.00 · 35 readings
  1. 2026-08-31reviews4rating3.00
  2. 2026-09-02reviews4rating3.00
  3. 2026-09-03reviews4rating3.00
  4. 2026-09-05reviews4rating3.00
  5. 2026-09-06reviews4rating3.00
  6. 2026-09-07reviews4rating3.00
  7. 2026-09-08reviews4rating3.00
  8. 2026-09-09reviews4rating3.00
  9. 2026-09-13reviews4rating3.00
  10. 2026-09-15reviews4rating3.00
  11. 2026-09-16reviews4rating3.00
  12. 2026-09-20reviews4rating3.00
  13. 2026-09-21reviews4rating3.00
  14. 2026-09-25reviews4rating3.00
  15. 2026-09-27reviews4rating3.00
  16. 2026-09-28reviews4rating3.00
  17. 2026-10-04reviews4rating3.00
  18. 2026-10-08reviews4rating3.00
  19. 2026-10-09reviews4rating3.00
  20. 2026-10-10reviews4rating3.00
  21. 2026-10-13reviews4rating3.00
  22. 2026-10-16reviews4rating3.00
  23. 2026-10-18reviews4rating3.00
  24. 2026-10-19reviews4rating3.00
  25. 2026-10-21reviews4rating3.00
  26. 2026-10-22reviews4rating3.00
  27. 2026-10-23reviews4rating3.00
  28. 2026-10-25reviews4rating3.00
  29. 2026-10-27reviews4rating3.00
  30. 2026-10-29reviews4rating3.00
  31. 2026-11-01reviews4rating3.00
  32. 2026-11-03reviews4rating3.00
  33. 2026-11-05reviews4rating3.00
  34. 2026-11-07reviews4rating3.00
  35. 2026-11-09reviews4rating3.00

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

Every site you visit. This extension can read and change the content of any page you open.

Show the remaining 4
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Store data in your browser storage
  • Store data in your browser without the usual size limit unlimitedStorage

The full permission history for this extension

What changed recently

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

The publisher

Master Tools publishes 8 listings we track, 204k users between them.

  1. Location Guard (V3) Master Tools · Make Chrome Yours · Accessibility · published 2025-01-13 100k users ★ 4.2
  2. Proxy SwitchyOmega (V3) Master Tools · Productivity · Developer · published 2024-08-06 100k users ★ 3.4
  3. h264ify (V3) Master Tools · Productivity · Workflow · published 2024-08-07 1k users ★ 4.0
Show 4 more from this publisher
  1. Global Speed Accelerator Master Tools · Make Chrome Yours · Accessibility · published 2024-02-26 1k users ★ 5.0
  2. SEO META in 1 CLICK (V3) Master Tools · Productivity · Developer · published 2024-08-15 827 users ★ 5.0
  3. JSON Viewer Master Tools · Productivity · Developer · published 2024-09-04 343 users ★ 5.0
  4. Youtube Ad Cleaner Master Tools · Productivity · Workflow · published 2024-07-31 46 users ★ 3.7

Like this one

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

  1. Descárgalo Describes nearly the same job, smaller audience 3 users (last published figure) ★ 5.0
  2. CleverGet Video Downloader Describes nearly the same job, smaller audience 156 users
  3. Video Downloader Describes nearly the same job, smaller audience 372 users
  4. Video Downloader Describes nearly the same job, smaller audience 1k users ★ 4.6
  5. Video & Audio Capture 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.

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.

Connect it in a minute See what the panel does
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/nlkboikdhpgaioegmabjejeheblefoni/badge.svg)](https://extops.dev/extensions/nlkboikdhpgaioegmabjejeheblefoni)

HTML

<a href="https://extops.dev/extensions/nlkboikdhpgaioegmabjejeheblefoni"><img src="https://extops.dev/extensions/nlkboikdhpgaioegmabjejeheblefoni/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 2026-11-09. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built