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ClassBlock

Chrome extension by ClassWave · Productivity · Tools

  • Established publisher

A Chrome extension in Productivity · Tools with 12 users, barely installed. Audience over the last 30 days: -3.

Specific sites only: 1 match pattern.

What the developer says, and 3 screenshots

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

Users
12
Rating
4.8 (4 ratings)
Users, last 30 days
-3
Rating, last 30 days
Steady over 30 days
Version
5.0.1
Updated in the store
2025-12-18
Published
2024-11-19
Manifest
V3
Browser access
4 permissions, 1 site pattern

How it has moved

Users
-3 since 02.10
9-16 · 14 readings
  1. 2026-10-0416
  2. 2026-10-0813
  3. 2026-10-0914
  4. 2026-10-1015
  5. 2026-10-1611
  6. 2026-10-1910
  7. 2026-10-209
  8. 2026-10-2113
  9. 2026-10-2212
  10. 2026-10-2414
  11. 2026-10-2613
  12. 2026-10-2912
  13. 2026-10-3013
  14. 2026-11-0112
Rating
unchanged since 02.10
reviewsrating 4.75 · 14 readings
  1. 2026-10-04reviews4rating4.75
  2. 2026-10-08reviews4rating4.75
  3. 2026-10-09reviews4rating4.75
  4. 2026-10-10reviews4rating4.75
  5. 2026-10-16reviews4rating4.75
  6. 2026-10-19reviews4rating4.75
  7. 2026-10-20reviews4rating4.75
  8. 2026-10-21reviews4rating4.75
  9. 2026-10-22reviews4rating4.75
  10. 2026-10-24reviews4rating4.75
  11. 2026-10-26reviews4rating4.75
  12. 2026-10-29reviews4rating4.75
  13. 2026-10-30reviews4rating4.75
  14. 2026-11-01reviews4rating4.75
Users
-1 since 31.08
9-18 · 26 readings
  1. 2026-08-3113
  2. 2026-09-0214
  3. 2026-09-0413
  4. 2026-09-0615
  5. 2026-09-0715
  6. 2026-09-0915
  7. 2026-09-1316
  8. 2026-09-1515
  9. 2026-09-1617
  10. 2026-09-2018
  11. 2026-09-2617
  12. 2026-09-2815
  13. 2026-10-0416
  14. 2026-10-0813
  15. 2026-10-0914
  16. 2026-10-1015
  17. 2026-10-1611
  18. 2026-10-1910
  19. 2026-10-209
  20. 2026-10-2113
  21. 2026-10-2212
  22. 2026-10-2414
  23. 2026-10-2613
  24. 2026-10-2912
  25. 2026-10-3013
  26. 2026-11-0112
Rating
unchanged since 31.08
reviewsrating 4.75 · 26 readings
  1. 2026-08-31reviews4rating4.75
  2. 2026-09-02reviews4rating4.75
  3. 2026-09-04reviews4rating4.75
  4. 2026-09-06reviews4rating4.75
  5. 2026-09-07reviews4rating4.75
  6. 2026-09-09reviews4rating4.75
  7. 2026-09-13reviews4rating4.75
  8. 2026-09-15reviews4rating4.75
  9. 2026-09-16reviews4rating4.75
  10. 2026-09-20reviews4rating4.75
  11. 2026-09-26reviews4rating4.75
  12. 2026-09-28reviews4rating4.75
  13. 2026-10-04reviews4rating4.75
  14. 2026-10-08reviews4rating4.75
  15. 2026-10-09reviews4rating4.75
  16. 2026-10-10reviews4rating4.75
  17. 2026-10-16reviews4rating4.75
  18. 2026-10-19reviews4rating4.75
  19. 2026-10-20reviews4rating4.75
  20. 2026-10-21reviews4rating4.75
  21. 2026-10-22reviews4rating4.75
  22. 2026-10-24reviews4rating4.75
  23. 2026-10-26reviews4rating4.75
  24. 2026-10-29reviews4rating4.75
  25. 2026-10-30reviews4rating4.75
  26. 2026-11-01reviews4rating4.75

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: 1 match pattern.

  • https://*.supabase.co/*
  • See the address and title of every tab you have open tabs
  • Block or redirect requests by rules it declares in advance declarativeNetRequest
  • See which of its blocking rules matched declarativeNetRequestFeedback
Show the remaining 1
  • 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

ClassWave publishes 2 listings we track, 19 users between them. Listed website: class-wave.com.

  1. CME ClassWave · Productivity · Education · published 2025-02-19 7 users (last published figure) ★ 5.0

Like this one

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

  1. AdShield — Protection Web Describes nearly the same job, smaller audience 5 users
  2. ArmBlock ad blocker Describes nearly the same job, smaller audience 11 users ★ 3.7
  3. SansPub Describes nearly the same job, smaller audience 3 users
  4. Giant ad blocker Describes nearly the same job, with a large installed audience 100k users ★ 4.0
  5. Best Advertisement Blocker Describes nearly the same job, smaller audience 19 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/bhdmpgcnehmmbohdmdhapchjidjhbogf/badge.svg)](https://extops.dev/extensions/bhdmpgcnehmmbohdmdhapchjidjhbogf)

HTML

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