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Blackout

Chrome extension by kris.brethower · Productivity · Tools

A Chrome extension in Productivity · Tools with 0 users, no reported installs.

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
not published (the store states no audience for this listing)
Rating
not rated yet
Users, last 2 days
unchanged
Version
0.1.0
Updated in the store
2026-09-13
Published
2026-09-13
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
unchanged since 14.09
0 · 2 readings
2026-09-14: appeared in the store
  1. 2026-09-140appeared in the store
  2. 2026-09-150
Users
unchanged since 14.09
0 · 2 readings
2026-09-14: appeared in the store
  1. 2026-09-140appeared in the store
  2. 2026-09-150

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.

  • 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

  1. Appeared in the store

The publisher

kris.brethower publishes 7 listings we track, 11k users between them.

  1. Autolingo kris.brethower · Lifestyle · Fun · published 2020-10-16 10k users ★ 3.8
  2. Speed Hack kris.brethower · Productivity · Tools · published 2025-11-02 444 users ★ 3.0
  3. Chess.com Hydrated kris.brethower · Lifestyle · Fun · published 2023-01-10 100 users
Show 3 more from this publisher
  1. Pyre kris.brethower · Make Chrome Yours · Functionality · published 2024-06-10 14 users ★ 5.0
  2. Hyperlinkify kris.brethower · Productivity · Tools · published 2025-09-13 13 users
  3. GeoHunter Helper kris.brethower · Lifestyle · Fun · published 2025-10-31 9 users ★ 5.0

Like this one

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

  1. Blackout Describes nearly the same job, smaller audience 9 users
  2. Page Blacker Describes nearly the same job, smaller audience 8 users
  3. Black it out Describes nearly the same job, smaller audience 3 users (last published figure)
  4. Blackout Tab Describes nearly the same job, smaller audience 11 users ★ 5.0
  5. Dark Reader Describes nearly the same job, smaller audience 4 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.

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.