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Ultimate CSS Injector

Chrome extension by KingsPacks · Productivity · Tools

A Chrome extension in Productivity · Tools with 146 users, barely installed. Audience over the last 30 days: -19.

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

What the developer says, and 2 screenshots

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

Users
146
Rating
5.0 (2 ratings)
Users, last 30 days
-19
Rating, last 30 days
Steady over 30 days
Version
1.5
Updated in the store
2025-03-07
Published
2025-02-17
Manifest
V3
Browser access
3 permissions, 1 site pattern

How it has moved

Users
-19 since 29.09
146-209 · 14 readings
  1. 2026-10-04201
  2. 2026-10-08209
  3. 2026-10-09178
  4. 2026-10-10166
  5. 2026-10-13159
  6. 2026-10-16156
  7. 2026-10-17152
  8. 2026-10-18157
  9. 2026-10-21155
  10. 2026-10-22156
  11. 2026-10-23154
  12. 2026-10-24157
  13. 2026-10-25150
  14. 2026-10-29146
Rating
unchanged since 29.09
reviewsrating 5.00 · 14 readings
  1. 2026-10-04reviews2rating5.00
  2. 2026-10-08reviews2rating5.00
  3. 2026-10-09reviews2rating5.00
  4. 2026-10-10reviews2rating5.00
  5. 2026-10-13reviews2rating5.00
  6. 2026-10-16reviews2rating5.00
  7. 2026-10-17reviews2rating5.00
  8. 2026-10-18reviews2rating5.00
  9. 2026-10-21reviews2rating5.00
  10. 2026-10-22reviews2rating5.00
  11. 2026-10-23reviews2rating5.00
  12. 2026-10-24reviews2rating5.00
  13. 2026-10-25reviews2rating5.00
  14. 2026-10-29reviews2rating5.00
Users
-2 since 01.09
146-209 · 25 readings
  1. 2026-09-01148
  2. 2026-09-02147
  3. 2026-09-04148
  4. 2026-09-07159
  5. 2026-09-10158
  6. 2026-09-13165
  7. 2026-09-15154
  8. 2026-09-17152
  9. 2026-09-21152
  10. 2026-09-25161
  11. 2026-09-28165
  12. 2026-10-04201
  13. 2026-10-08209
  14. 2026-10-09178
  15. 2026-10-10166
  16. 2026-10-13159
  17. 2026-10-16156
  18. 2026-10-17152
  19. 2026-10-18157
  20. 2026-10-21155
  21. 2026-10-22156
  22. 2026-10-23154
  23. 2026-10-24157
  24. 2026-10-25150
  25. 2026-10-29146
Rating
unchanged since 01.09
reviewsrating 5.00 · 25 readings
  1. 2026-09-01reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-04reviews2rating5.00
  4. 2026-09-07reviews2rating5.00
  5. 2026-09-10reviews2rating5.00
  6. 2026-09-13reviews2rating5.00
  7. 2026-09-15reviews2rating5.00
  8. 2026-09-17reviews2rating5.00
  9. 2026-09-21reviews2rating5.00
  10. 2026-09-25reviews2rating5.00
  11. 2026-09-28reviews2rating5.00
  12. 2026-10-04reviews2rating5.00
  13. 2026-10-08reviews2rating5.00
  14. 2026-10-09reviews2rating5.00
  15. 2026-10-10reviews2rating5.00
  16. 2026-10-13reviews2rating5.00
  17. 2026-10-16reviews2rating5.00
  18. 2026-10-17reviews2rating5.00
  19. 2026-10-18reviews2rating5.00
  20. 2026-10-21reviews2rating5.00
  21. 2026-10-22reviews2rating5.00
  22. 2026-10-23reviews2rating5.00
  23. 2026-10-24reviews2rating5.00
  24. 2026-10-25reviews2rating5.00
  25. 2026-10-29reviews2rating5.00

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.

  • 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

The full permission history for this extension

What changed recently

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

The publisher

KingsPacks publishes 3 listings we track, 428 users between them.

  1. Video Tools Ultimate KingsPacks · Productivity · Tools · published 2025-01-30 234 users ★ 3.5
  2. Vineyard Expanded and Enhanced KingsPacks · Make Chrome Yours · Functionality · published 2024-07-08 48 users ★ 5.0

Like this one

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

  1. Quick CSS Describes nearly the same job, smaller audience 8 users
  2. Website Customizer: Add Custom Style and CSS Describes nearly the same job, smaller audience 692 users ★ 5.0
  3. rePaint — Restyle any website Describes nearly the same job, smaller audience 3 users ★ 5.0
  4. Smart Stylez: Live Web Styler & CSS Helper Describes nearly the same job, smaller audience 11 users
  5. Add CSS - Custom Style Injector Describes nearly the same job, smaller audience 369 users ★ 5.0

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.

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

HTML

<a href="https://extops.dev/extensions/fhenpnldacihcaljbdgfeiijenkillbd"><img src="https://extops.dev/extensions/fhenpnldacihcaljbdgfeiijenkillbd/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 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built