Ext Ops Panel
Open dashboard

Blackout

Chrome extension by kris.brethower · Productivity · Tools

A Chrome extension in Productivity · Tools with 5 users, barely installed. Audience over the last 30 days: +4.

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
5
Rating
not rated yet
Users, last 30 days
+4
Version
2026.10.08.3
Updated in the store
2026-10-08
Published
2026-09-13
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
+4 since 03.10
1-8 · 10 readings
2026-10-09: released 2026.10.08.3
  1. 2026-10-103
  2. 2026-10-184
  3. 2026-10-193
  4. 2026-10-223
  5. 2026-10-234
  6. 2026-10-247
  7. 2026-10-278
  8. 2026-10-296
  9. 2026-11-015
  10. 2026-11-025
Users
+5 since 14.09
0-8 · 12 readings
2026-09-14: appeared in the store2026-10-09: released 2026.10.08.3
  1. 2026-09-140appeared in the store
  2. 2026-09-251
  3. 2026-10-103
  4. 2026-10-184
  5. 2026-10-193
  6. 2026-10-223
  7. 2026-10-234
  8. 2026-10-247
  9. 2026-10-278
  10. 2026-10-296
  11. 2026-11-015
  12. 2026-11-025

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.

The full permission history for this extension

Version history

  1. Version 2026.10.08.3

What changed recently

  1. Package size changed
  2. Released version 2026.10.08.3 (was 0.1.0)
  3. 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 ★ 2.5
  2. Speed Hack kris.brethower · Productivity · Tools · published 2025-11-02 439 users ★ 3.0
  3. Chess.com Hydrated kris.brethower · Lifestyle · Fun · published 2023-01-10 118 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 12 users
  3. GeoHunter Helper kris.brethower · Lifestyle · Fun · published 2025-10-31 8 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 10 users
  2. Page Blacker Describes nearly the same job, smaller audience 6 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 15 users ★ 5.0
  5. Dark Reader Describes nearly the same job, smaller audience 5 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/pfkbpfkaokigkgdecggohjggpbcgamji/badge.svg)](https://extops.dev/extensions/pfkbpfkaokigkgdecggohjggpbcgamji)

HTML

<a href="https://extops.dev/extensions/pfkbpfkaokigkgdecggohjggpbcgamji"><img src="https://extops.dev/extensions/pfkbpfkaokigkgdecggohjggpbcgamji/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 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built