Extension Tracker

Chrome Browser Lockdown

100,000 users Rated 1.25 from 12 ratings Last updated 9 Aug 2022

By Castle Learning Live in the Chrome Web Store kjafomlgjddlogahodihnhhmlobijdff Last checked 27 Sep 2026, 04:22 UTC

The listing

What the Chrome Web Store shows, as of the last check

Blocks students from opening new tabs when they are completing a Castle assignment.Summary from the listing
Developer
Castle Learning
Trader status
Declared a trader under EU law
Category
Make Chrome Yours › Accessibility
First published
18 May 2022
Last updated
9 Aug 2022
Version
0.0.8
Size
15.37 KiB
Minimum Chrome
88
Languages
1 language

English (United States)

Privacy policy
https://cl.castlelearning.com/Review/CLO/Documents/DataPrivacySecurityPolicy.pdf
Open in the Chrome Web Store ↗ View the code or download the CRX in CRX Viewer ↗
Users over time As shown on the Chrome Web Store

Tracking began on 27 Sep 2026. The chart appears after the second check.

Show the numbers
CheckedUsersRatingRatings
2026-09-27100,0001.2512
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
#1,082
by users, of 264,703 extensions
In its category
#69
of 7,982 in Accessibility

What changed

Every change found on a check, newest first

No changes found since tracking began on 27 Sep 2026.

What it can access

From the extension's manifest, in plain language

Every websiteIt can read and change your data on all the sites you visit.
Sites where it runs scripts
  • *://*.app.schoology.com/external_tool/*app.schoology.com and its subdomains
  • *://*.canvas.instructure.com/coursescanvas.instructure.com and its subdomains
  • *://*.castlelearning.com/*assignmentID=*castlelearning.com and its subdomains
  • <all_urls>Every website
  • http://localhost:90/*assignmentID=*localhost:90
Browser features
  • notificationsShow notifications
  • tabsRead the addresses and titles of your tabs

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 27 Sep 2026, 04:22 UTC; next check around 29 Sep 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Chrome Browser Lockdown” (kjafomlgjddlogahodihnhhmlobijdff). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/kjafomlgjddlogahodihnhhmlobijdff. Accessed 2026-09-28.
BibTeX
@misc{extensiontracker_kjafomlgjddlogahodihnhhmlobijdff,
  title   = {Chrome Browser Lockdown (kjafomlgjddlogahodihnhhmlobijdff)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/kjafomlgjddlogahodihnhhmlobijdff},
  urldate = {2026-09-28}
}

The data is free to reuse under CC BY 4.0.

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