Nullgen AI BlockerHow to block Meta AI
How to block Meta AI on every device
Meta AI is Meta’s assistant at meta.ai. This page covers the standalone site and app; Meta AI inside Instagram, WhatsApp, and Facebook shares those apps’ hosts and is not blocked. Below: how to block Meta AI in the browser, on phones and tablets, on your home or school network, and on managed devices.
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Meta AI
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meta.aiBlocked1 hostname in the Nullgen catalog
Every entry also covers its subdomains, so the Meta AI app and API are blocked too.
What Meta AI connects to
These are the hostnames Meta AI uses for its website, its apps, and its API. Each entry is matched as a suffix — blocking meta.ai also blocks every subdomain of it — so the Meta AI app cannot slip through on a hostname that is not listed. Shared hosts that other products need are deliberately left out.
| Hostname | Role |
|---|---|
| meta.ai | Main website |
Meta AI inside Instagram, WhatsApp, and Facebook is not blocked
Meta AI answers inside Instagram, WhatsApp, Messenger, and Facebook, and those apps share hosts with the assistant. This guide blocks the standalone meta.ai website and app. To keep Meta AI out of chats, the whole app has to go — Screen Time, Family Link, or your MDM can do that.
Block Meta AI in the browser
Free: the Nullgen browser extension
The free extension blocks Meta AI and every other tool in the catalog in Chrome, Edge, Firefox, and Safari. It works on the page itself — no DNS change, no policy — and updates as the catalog grows.
Managed browsers: block the sites by policy
On a school or company fleet, push the hostnames as a browser policy so Meta AI is blocked even when someone uninstalls extensions. These snippets use the official Chrome, Edge, and Firefox policy names and the same hosts listed above.
Chrome and Edge — URLBlocklist
{
"URLBlocklist": [
"meta.ai"
]
}Firefox — policies.json
{
"policies": {
"WebsiteFilter": {
"Block": [
"*://meta.ai/*",
"*://*.meta.ai/*"
]
}
}
}Chrome and Edge treat a bare hostname as the host plus every subdomain. Firefox needs both the apex and the wildcard pattern.
Need every AI tool in one file, or a .reg or macOS profile?
Open the free policy generatorBlock the Meta AI app on phones and tablets
Nullgen mobile app
The Nullgen app blocks Meta AI and 100+ other AI apps and sites on the whole device with an on-device filter — the app, the website, and the API, on any network, with no DNS server to run. Included with Nullgen Pro.
Without Nullgen: Screen Time on iPhone and iPad
- 1Open Settings → Screen Time → Content & Privacy Restrictions and turn restrictions on. This covers Meta AI in Safari and in apps that use Apple’s web filter.
- 2Under Web Content, choose Limit Adult Websites — the setting that lets you deny meta.ai by name.
- 3Under Never Allow, add meta.ai. Safari and apps that use Apple’s web filter will refuse it.
- 4To keep the Meta AI app off the device entirely, delete it and set Installing Apps to Don’t Allow, or use Ask to Buy on a child’s Apple Account.
Without Nullgen: Family Link on Android
- 1Open Family Link, choose the child, then Controls → Content restrictions → Google Chrome — where Meta AI can be blocked by site.
- 2Choose Only allow approved sites, or add meta.ai under Blocked sites.
- 3Under Controls → App limits, block the Meta AI app, or require approval for new installs from Google Play.
Block Meta AI on your home or school network
A DNS blocker such as Pi-hole, AdGuard Home, NextDNS, or pfBlockerNG blocks Meta AI for every device on the network — laptops, phones, consoles, and the Meta AI app — without installing anything on them. Subscribe to the Meta AI file from the public blocklist, or paste the rules directly.
Subscribe to the Meta AI list
AdGuard Home, uBlock Origin, and Brave rules
||meta.ai^DNS blocking cannot see inside a VPN or a phone on mobile data. For a block that follows the device, use the Nullgen apps or an MDM profile.
Block Meta AI on managed devices
Schools and companies can block Meta AI on every managed iPhone, iPad, laptop, and Chromebook from the MDM they already run — Intune, Jamf, Kandji, or Google Workspace — with per-person policies and an approval flow for legitimate use. Nullgen Pro provides the profiles and the dashboard; these guides walk through the setup.
Questions about blocking Meta AI
Does the free Nullgen extension block Meta AI?
Yes. The free extension blocks prompts on Meta AI and every other AI tool in the catalog in Chrome, Edge, Firefox, and Safari. It works on the page itself, so it needs no policy and no DNS change.
Will blocking Meta AI break other websites?
No. Every hostname on this page belongs to Meta AI alone. Shared websites that other products depend on are never on the list — which is also why AI features built into those products stay reachable.
Can someone get around a Meta AI block?
A browser-only block can be bypassed with another browser or the Meta AI app, and a network block can be bypassed with a VPN or a phone on mobile data. A block on the device itself — the Nullgen apps, Screen Time, or an MDM profile — follows the device wherever it goes.
Does this block the Meta AI app, not just the website?
A DNS or device-level block does. The app talks to the same hostnames listed above, and every entry covers its subdomains, so the app cannot slip through on a hostname that is not listed. A browser policy or extension only covers the browser.
What happens when Meta AI adds a new hostname?
The catalog is updated as vendors change, and the Nullgen apps, the extension, and the public blocklist all read from it, so a new hostname reaches every device without anyone editing a list by hand.
Block Meta AI today
Start with the free browser extension. Add Nullgen Pro when you need the Meta AI app blocked on phones, tablets, and desktops, with approvals for the people who really need it.