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YouTube Comment Custom CSS Tester

Chrome extension by キィー · Productivity · Tools

  • Established publisher

A Chrome extension in Productivity · Tools with 82 users, barely installed. Audience over the last 30 days: -2.

Specific sites only: 2 match patterns.

What the developer says, and 2 screenshots

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

Users
82
Rating
5.0 (1 ratings)
Users, last 30 days
-2
Rating, last 30 days
Steady over 30 days
Version
0.1.3
Updated in the store
2024-08-20
Published
2021-12-19
Manifest
V3
Browser access
2 permissions, 2 site patterns

How it has moved

Users
-2 since 02.10
80-89 · 17 readings
  1. 2026-10-0887
  2. 2026-10-0989
  3. 2026-10-1088
  4. 2026-10-1385
  5. 2026-10-1683
  6. 2026-10-1781
  7. 2026-10-1884
  8. 2026-10-1982
  9. 2026-10-2084
  10. 2026-10-2186
  11. 2026-10-2283
  12. 2026-10-2384
  13. 2026-10-2483
  14. 2026-10-2584
  15. 2026-10-2881
  16. 2026-10-2980
  17. 2026-11-0182
Rating
unchanged since 02.10
reviewsrating 5.00 · 17 readings
  1. 2026-10-08reviews1rating5.00
  2. 2026-10-09reviews1rating5.00
  3. 2026-10-10reviews1rating5.00
  4. 2026-10-13reviews1rating5.00
  5. 2026-10-16reviews1rating5.00
  6. 2026-10-17reviews1rating5.00
  7. 2026-10-18reviews1rating5.00
  8. 2026-10-19reviews1rating5.00
  9. 2026-10-20reviews1rating5.00
  10. 2026-10-21reviews1rating5.00
  11. 2026-10-22reviews1rating5.00
  12. 2026-10-23reviews1rating5.00
  13. 2026-10-24reviews1rating5.00
  14. 2026-10-25reviews1rating5.00
  15. 2026-10-28reviews1rating5.00
  16. 2026-10-29reviews1rating5.00
  17. 2026-11-01reviews1rating5.00
Users
+2 since 31.08
80-89 · 30 readings
  1. 2026-08-3180
  2. 2026-09-0486
  3. 2026-09-0687
  4. 2026-09-0786
  5. 2026-09-0988
  6. 2026-09-1087
  7. 2026-09-1386
  8. 2026-09-1785
  9. 2026-09-2086
  10. 2026-09-2187
  11. 2026-09-2584
  12. 2026-09-2685
  13. 2026-09-2884
  14. 2026-10-0887
  15. 2026-10-0989
  16. 2026-10-1088
  17. 2026-10-1385
  18. 2026-10-1683
  19. 2026-10-1781
  20. 2026-10-1884
  21. 2026-10-1982
  22. 2026-10-2084
  23. 2026-10-2186
  24. 2026-10-2283
  25. 2026-10-2384
  26. 2026-10-2483
  27. 2026-10-2584
  28. 2026-10-2881
  29. 2026-10-2980
  30. 2026-11-0182
Rating
unchanged since 31.08
reviewsrating 5.00 · 30 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-04reviews1rating5.00
  3. 2026-09-06reviews1rating5.00
  4. 2026-09-07reviews1rating5.00
  5. 2026-09-09reviews1rating5.00
  6. 2026-09-10reviews1rating5.00
  7. 2026-09-13reviews1rating5.00
  8. 2026-09-17reviews1rating5.00
  9. 2026-09-20reviews1rating5.00
  10. 2026-09-21reviews1rating5.00
  11. 2026-09-25reviews1rating5.00
  12. 2026-09-26reviews1rating5.00
  13. 2026-09-28reviews1rating5.00
  14. 2026-10-08reviews1rating5.00
  15. 2026-10-09reviews1rating5.00
  16. 2026-10-10reviews1rating5.00
  17. 2026-10-13reviews1rating5.00
  18. 2026-10-16reviews1rating5.00
  19. 2026-10-17reviews1rating5.00
  20. 2026-10-18reviews1rating5.00
  21. 2026-10-19reviews1rating5.00
  22. 2026-10-20reviews1rating5.00
  23. 2026-10-21reviews1rating5.00
  24. 2026-10-22reviews1rating5.00
  25. 2026-10-23reviews1rating5.00
  26. 2026-10-24reviews1rating5.00
  27. 2026-10-25reviews1rating5.00
  28. 2026-10-28reviews1rating5.00
  29. 2026-10-29reviews1rating5.00
  30. 2026-11-01reviews1rating5.00

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

Specific sites only: 2 match patterns.

  • https://www.youtube.com/live_chat
  • https://studio.youtube.com/live_chat
  • 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

キィー publishes 9 listings we track, 728 users between them. Listed website: kii-memo.blogspot.com.

  1. Item View for Tiwtcasting キィー · Lifestyle · Social · published 2020-10-27 266 users
  2. Item Monitor for TiwtCasting キィー · Lifestyle · Social · published 2021-02-16 128 users
  3. Go to Tiwtcas Broadcastertool キィー · Lifestyle · Social · published 2020-10-24 123 users
Show 5 more from this publisher
  1. Twitcas Comment Custom CSS Tester キィー · Productivity · Tools · published 2021-12-09 49 users
  2. Akaji Alert Bot for Twitcasting キィー · Make Chrome Yours · Accessibility · published 2023-01-08 38 users
  3. Twitch Chat Comments Ovelay Custom CSS Tester キィー · Productivity · Tools · published 2024-05-19 29 users
  4. Pyukoru Kingdom Bot (Unofficial) キィー · Lifestyle · Social · published 2021-12-04 7 users
  5. Dancing Osakana Youtube Video List キィー · Productivity · Tools · published 2021-04-14 6 users

Like this one

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

  1. Twitcas Comment Custom CSS Tester Describes nearly the same job, smaller audience 49 users
  2. CSS Injector Describes nearly the same job, smaller audience 4 users
  3. Style+ Describes nearly the same job, smaller audience 3 users (last published figure)
  4. CSS Injector Describes nearly the same job, smaller audience 344 users
  5. CSS Dev Tool Describes nearly the same job, smaller audience 3 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.

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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/jamdfahhlffjdnmfmjmakbinalkhahjm/badge.svg)](https://extops.dev/extensions/jamdfahhlffjdnmfmjmakbinalkhahjm)

HTML

<a href="https://extops.dev/extensions/jamdfahhlffjdnmfmjmakbinalkhahjm"><img src="https://extops.dev/extensions/jamdfahhlffjdnmfmjmakbinalkhahjm/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