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CanvasNinja – Tab Detection Blocker for Canvas

Chrome extension by Terabits Technolab · Productivity · Education

A Chrome extension in Productivity · Education with 461 users, barely installed.

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

What the developer says, and 4 screenshots

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

Users
461
Rating
5.0 (5 ratings)
Users, last 15 days
+52
Rating, last 30 days
Not watched long enough to say
Version
1.1.16
Updated in the store
2026-09-14
Published
2026-02-02
Manifest
V3
Browser access
3 permissions, 2 site patterns

How it has moved

Users
+52 since 31.08
409-461 · 8 readings
2026-09-03: released 1.1.152026-09-14: released 1.1.16
  1. 2026-08-31409
  2. 2026-09-02431
  3. 2026-09-04421
  4. 2026-09-06433
  5. 2026-09-08427
  6. 2026-09-09432
  7. 2026-09-13461
  8. 2026-09-14461released 1.1.16
Rating
unchanged since 31.08
reviewsrating 5.00 · 8 readings
2026-09-03: released 1.1.152026-09-14: released 1.1.16
  1. 2026-08-31reviews5rating5.00
  2. 2026-09-02reviews5rating5.00
  3. 2026-09-04reviews5rating5.00
  4. 2026-09-06reviews5rating5.00
  5. 2026-09-08reviews5rating5.00
  6. 2026-09-09reviews5rating5.00
  7. 2026-09-13reviews5rating5.00
  8. 2026-09-14reviews5rating5.00released 1.1.16
Users
+52 since 31.08
409-461 · 8 readings
2026-09-03: released 1.1.152026-09-14: released 1.1.16
  1. 2026-08-31409
  2. 2026-09-02431
  3. 2026-09-04421
  4. 2026-09-06433
  5. 2026-09-08427
  6. 2026-09-09432
  7. 2026-09-13461
  8. 2026-09-14461released 1.1.16
Rating
unchanged since 31.08
reviewsrating 5.00 · 8 readings
2026-09-03: released 1.1.152026-09-14: released 1.1.16
  1. 2026-08-31reviews5rating5.00
  2. 2026-09-02reviews5rating5.00
  3. 2026-09-04reviews5rating5.00
  4. 2026-09-06reviews5rating5.00
  5. 2026-09-08reviews5rating5.00
  6. 2026-09-09reviews5rating5.00
  7. 2026-09-13reviews5rating5.00
  8. 2026-09-14reviews5rating5.00released 1.1.16

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once 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

Version history

  1. Version 1.1.16
  2. Version 1.1.15

What changed recently

  1. Released version 1.1.16 (was 1.1.15)
  2. Released version 1.1.15 (was 1.1.14)

The publisher

Terabits Technolab publishes 3 listings we track, 663 users between them. Listed website: canvasninja.app.

  1. 2Subs: Dual Subtitles for Netflix, YouTube & Learning Terabits Technolab · Productivity · Education · published 2026-06-09 198 users
  2. ExamNinja - AI Homework Helper Terabits Technolab · Productivity · Education · published 2026-08-17 4 users

Like this one

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

  1. Canvas Tab Switch Blocker | Phantom Describes nearly the same job, smaller audience 84 users
  2. Canvas Crack Describes nearly the same job, smaller audience 96 users ★ 4.3
  3. Canvas Hack Boost Describes nearly the same job, smaller audience 32 users ★ 5.0
  4. Canvas Zero - Canvas quizzes Assistant Describes nearly the same job, smaller audience 10 users ★ 5.0
  5. CanvasGhost Describes nearly the same job, smaller audience 2 users (last published figure)

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.

Is this your extension?

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See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.