Ext Ops Panel
Open the app

Personal Black Hole

Chrome extension by nckbrz · Lifestyle · Entertainment

  • Established publisher

A Chrome extension in Lifestyle · Entertainment with 131 users, barely installed.

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

What the developer says, and 5 screenshots

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

Users
131
Rating
5.0 (3 ratings)
Users, last 16 days
+59
Rating, last 30 days
Not watched long enough to say
Version
5.5
Updated in the store
2026-09-14
Published
2026-06-14
Manifest
V3
Browser access
4 permissions, 1 site pattern

How it has moved

Users
+59 since 01.09
72-131 · 11 readings
2026-09-08: released 5.42026-09-12: gained the good publisher record badge2026-09-14: released 5.5
  1. 2026-09-0172
  2. 2026-09-0277
  3. 2026-09-0485
  4. 2026-09-0587
  5. 2026-09-0686
  6. 2026-09-0789
  7. 2026-09-0890released 5.4
  8. 2026-09-0994
  9. 2026-09-13112
  10. 2026-09-15118
  11. 2026-09-16131
Rating
unchanged since 01.09
reviewsrating 5.00 · 11 readings
2026-09-08: released 5.42026-09-12: gained the good publisher record badge2026-09-14: released 5.5
  1. 2026-09-01reviews3rating5.00
  2. 2026-09-02reviews3rating5.00
  3. 2026-09-04reviews3rating5.00
  4. 2026-09-05reviews3rating5.00
  5. 2026-09-06reviews3rating5.00
  6. 2026-09-07reviews3rating5.00
  7. 2026-09-08reviews3rating5.00released 5.4
  8. 2026-09-09reviews3rating5.00
  9. 2026-09-13reviews3rating5.00
  10. 2026-09-15reviews3rating5.00
  11. 2026-09-16reviews3rating5.00
Users
+59 since 01.09
72-131 · 11 readings
2026-09-08: released 5.42026-09-12: gained the good publisher record badge2026-09-14: released 5.5
  1. 2026-09-0172
  2. 2026-09-0277
  3. 2026-09-0485
  4. 2026-09-0587
  5. 2026-09-0686
  6. 2026-09-0789
  7. 2026-09-0890released 5.4
  8. 2026-09-0994
  9. 2026-09-13112
  10. 2026-09-15118
  11. 2026-09-16131
Rating
unchanged since 01.09
reviewsrating 5.00 · 11 readings
2026-09-08: released 5.42026-09-12: gained the good publisher record badge2026-09-14: released 5.5
  1. 2026-09-01reviews3rating5.00
  2. 2026-09-02reviews3rating5.00
  3. 2026-09-04reviews3rating5.00
  4. 2026-09-05reviews3rating5.00
  5. 2026-09-06reviews3rating5.00
  6. 2026-09-07reviews3rating5.00
  7. 2026-09-08reviews3rating5.00released 5.4
  8. 2026-09-09reviews3rating5.00
  9. 2026-09-13reviews3rating5.00
  10. 2026-09-15reviews3rating5.00
  11. 2026-09-16reviews3rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once 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.

  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Tell whether you are away from the computer idle
Show the remaining 1
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 5.5
  2. Version 5.4

What changed recently

  1. Store description rewritten
  2. Released version 5.5 (was 5.4)
  3. Store badges changed
Show the remaining 3
  1. Store description rewritten
  2. Package size changed
  3. Released version 5.4 (was 5.3)

The publisher

nckbrz publishes 4 listings we track, 195 users between them.

  1. GeForce NOW Playtime Tracker nckbrz · Productivity · Workflow · published 2026-07-13 33 users ★ 5.0
  2. Todoist Visual Tweaks nckbrz · Productivity · Workflow · published 2026-06-04 27 users ★ 5.0
  3. Todoist Refined Favorites nckbrz · Productivity · Workflow · published 2026-09-11 4 users

Like this one

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

  1. GraviTab Describes nearly the same job, smaller audience 36 users
  2. Black Hole Live Wallpaper Describes nearly the same job, smaller audience 30 users
  3. Astronaut Grok Black Hole Live Wallpaper - Space New Tab Describes nearly the same job, smaller audience 926 users ★ 4.8
  4. Galaxy Creatures Describes nearly the same job, smaller audience 2k users ★ 4.7
  5. BlackHole Tab Describes nearly the same job, smaller audience 496 users ★ 4.5

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.

Is this your extension?

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

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.