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StayFocus on Canvas

Chrome extension by CanvasPreventor · Productivity · Education

A Chrome extension in Productivity · Education with 227 users, barely installed. Audience over the last 30 days: +18.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 3 screenshots

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

Users
227
Rating
2.3 (3 ratings)
Users, last 30 days
+18
Rating, last 30 days
Steady over 30 days
Version
1.1
Updated in the store
2023-10-20
Published
2023-10-19
Manifest
V3
Browser access
3 permissions

How it has moved

Users
+18 since 02.10
206-227 · 15 readings
  1. 2026-10-04206
  2. 2026-10-08207
  3. 2026-10-10207
  4. 2026-10-13210
  5. 2026-10-16218
  6. 2026-10-18221
  7. 2026-10-19223
  8. 2026-10-21224
  9. 2026-10-22218
  10. 2026-10-23213
  11. 2026-10-24209
  12. 2026-10-25213
  13. 2026-10-27225
  14. 2026-10-29226
  15. 2026-11-01227
Rating
unchanged since 02.10
reviewsrating 2.33 · 15 readings
  1. 2026-10-04reviews3rating2.33
  2. 2026-10-08reviews3rating2.33
  3. 2026-10-10reviews3rating2.33
  4. 2026-10-13reviews3rating2.33
  5. 2026-10-16reviews3rating2.33
  6. 2026-10-18reviews3rating2.33
  7. 2026-10-19reviews3rating2.33
  8. 2026-10-21reviews3rating2.33
  9. 2026-10-22reviews3rating2.33
  10. 2026-10-23reviews3rating2.33
  11. 2026-10-24reviews3rating2.33
  12. 2026-10-25reviews3rating2.33
  13. 2026-10-27reviews3rating2.33
  14. 2026-10-29reviews3rating2.33
  15. 2026-11-01reviews3rating2.33
Users
+37 since 31.08
190-227 · 27 readings
  1. 2026-08-31190
  2. 2026-09-02194
  3. 2026-09-05202
  4. 2026-09-07201
  5. 2026-09-08199
  6. 2026-09-09201
  7. 2026-09-13207
  8. 2026-09-15206
  9. 2026-09-17207
  10. 2026-09-20194
  11. 2026-09-21196
  12. 2026-09-26209
  13. 2026-10-04206
  14. 2026-10-08207
  15. 2026-10-10207
  16. 2026-10-13210
  17. 2026-10-16218
  18. 2026-10-18221
  19. 2026-10-19223
  20. 2026-10-21224
  21. 2026-10-22218
  22. 2026-10-23213
  23. 2026-10-24209
  24. 2026-10-25213
  25. 2026-10-27225
  26. 2026-10-29226
  27. 2026-11-01227
Rating
unchanged since 31.08
reviewsrating 2.33 · 27 readings
  1. 2026-08-31reviews3rating2.33
  2. 2026-09-02reviews3rating2.33
  3. 2026-09-05reviews3rating2.33
  4. 2026-09-07reviews3rating2.33
  5. 2026-09-08reviews3rating2.33
  6. 2026-09-09reviews3rating2.33
  7. 2026-09-13reviews3rating2.33
  8. 2026-09-15reviews3rating2.33
  9. 2026-09-17reviews3rating2.33
  10. 2026-09-20reviews3rating2.33
  11. 2026-09-21reviews3rating2.33
  12. 2026-09-26reviews3rating2.33
  13. 2026-10-04reviews3rating2.33
  14. 2026-10-08reviews3rating2.33
  15. 2026-10-10reviews3rating2.33
  16. 2026-10-13reviews3rating2.33
  17. 2026-10-16reviews3rating2.33
  18. 2026-10-18reviews3rating2.33
  19. 2026-10-19reviews3rating2.33
  20. 2026-10-21reviews3rating2.33
  21. 2026-10-22reviews3rating2.33
  22. 2026-10-23reviews3rating2.33
  23. 2026-10-24reviews3rating2.33
  24. 2026-10-25reviews3rating2.33
  25. 2026-10-27reviews3rating2.33
  26. 2026-10-29reviews3rating2.33
  27. 2026-11-01reviews3rating2.33

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

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab

The full permission history for this extension

What changed recently

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

The publisher

CanvasPreventor.

Like this one

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

  1. Canvas Tab Shield: Quiz & Test Detection Blocker Describes nearly the same job, smaller audience 902 users ★ 4.2
  2. Canvas Help Describes nearly the same job, smaller audience 23 users ★ 5.0
  3. CanvasNinja – Tab Detection Blocker for Canvas Describes nearly the same job, smaller audience 827 users ★ 5.0
  4. QuizCloak Describes nearly the same job, smaller audience 372 users ★ 5.0
  5. Canvas Privacy Protection Describes nearly the same job, smaller audience 155 users ★ 1.0

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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Users and rating on Ext Ops Panel

Markdown

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

HTML

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