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Only allows navigation to whitelisted sites. Password required to unlock. School Lock keeps a Chromebook focused on school work. When it's on, the browser can only open websites on a parent-defined list; every other page redirects to a simple "not on the school list" screen. Turning it off requires a parent password. An optional schedule turns the lock on and off automatically on chosen days and hours. This is a focus tool, not a security tool. It doesn't stop a child from uninstalling the extension or using another profile — pair it with Google Family Link (or similar) if you need real enforcement. All settings stay on the device; nothing is collected or sent anywhere. If you forget the password, use the recovery code shown at setup; as a last resort, uninstalling and reinstalling the extension clears all settings.
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.