Install @t Filter

Chromebook

Recommended and free: Family Link child account + AT Filter extension

1. On the parent's phone, install Google Family Link and create (or link) the child's Google account.
2. Sign in to the Chromebook with that child account. Google turns off private browsing (Incognito), enforces SafeSearch and blocks guest accounts.
3. In Family Link, keep "Extension approval" on: the child cannot add anything without you.
4. On the Chromebook, install the AT Filter extension from the Chrome Web Store; the parent approves it in Family Link, then enter the installation code.
5. YOUR-CODE

Full AT Filter app (filters the whole Chromebook)

The AT Filter Android app also runs on Chromebooks and filters the whole device, Chrome included. It will soon be available on the Play Store: you will then just install it from the child account's Play Store (the parent approves it in Family Link).

Installing the APK outside the Play Store requires developer mode: it wipes the Chromebook completely and weakens its security (OS verification turned off). For testing only, never for a child's Chromebook.

In your browser

The AT Filter extension blocks adult sites and enforces SafeSearch in the browser, even without the app. Pick yours.

Brave is our recommended browser: its ad and tracker blocking complements AT Filter.

1. Download the AT Filter extension (atfilter-extension-chrome.zip) and unzip it.
2. Open brave://extensions, turn on "Developer mode", then "Load unpacked" and choose the folder.
3. Enter the installation code in the extension. The extension store version is coming soon; on Windows the AT Filter installer already enforces it in Brave.
4. YOUR-CODE

Finally: check

When the device is linked, it shows in your console as "Filter on". Tick as you go:

• The AT Filter app is installed and the install code entered.
• The filter is on (VPN request accepted).
• Device administrator and Accessibility are enabled.
• The device appears in the management console, status "Filter on".

Get my installation code

Enter the email address of your @t Filter account: we send you a code valid for 2 hours.

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