Parents Guide to Blocking Facebook on a Child's Android smartphone
Prevent a child from using Facebook on an Android smartphone either permanently or temporarily

If you are trying to prevent your child from accessing Facebook on an Android smartphone, you might have noticed that this process is not straightforward.
In this guide, we'll walk you through the Android-specific instructions for blocking Facebook using approaches that work for parents managing a child's Android device. We'll also go through strategies for permanent or temporary Facebook restriction.
Is it worth completely restricting your child from accessing Facebook on an Android smartphone?
Here are a few of our top reasons why you might block Facebook, restricting your child from accessing it entirely on an Android smartphone:
Inappropriate Facebook profiles can be difficult to filter out
Facebook profiles are often used to advertise adult content either subtly or blatantly. This can be a particular problem if you are trying to prevent your child from seeking out or accidentally finding adult content.

Facebook might suggest inappropriate content
Facebook might suggest images or videos that you'd rather prevent your child from seeing. Even if parental control preferences are adjusted to hide obvious explicit content, Facebook might still suggest content that can be a "stumbling block" for your child.

Connecting strangers
The Facebook feed includes posts and reels from strangers, not just friends and connections. It's possible for strangers on Facebook to private message your child.

Alternatives to completely blocking Facebook for your child on an Android smartphone
Depending on your reasons for wanting to block Facebook for your child, you might find that there are alternative approaches to considerso that your child can still use Facebook on an Android smartphone:
Increase transparency around Facebook use
Many of the issues surrounding Facebook can be addressed by increasing transparency around a child's use of it by using a screen monitoring app like LivingRoom for Families. With this approach, a child can have some additional freedom to use platforms that might be problematic without transparency.

Customize preferences for problematic Facebook features
It's possible to customize the Facebook account preferences to minimize the impact of some of the most problematic features of the app. For example, you can customize profile visibility, and content & communication preferences.
Schedule Facebook use
Another approach is to schedule when Facebook is blocked so that your child can still use it sometimes on an Android smartphone. You can limit access to the app to specific times of the day where you are able to supervise their use of Facebook. For example, you might choose to only allow Facebook in the morning before school, but block it at night.

A universal approach that can be used to block Facebook on Android for a child is to use a DNS Content Policy

This approach disables the internet access for Facebook so that it can't function. The app can still be downloaded, but it will not work.
A universal approach that can be used to block Facebook on iPhone for any person or Android is to use a DNS Content Policy

This approach disables the internet access for Facebook so that it can't function. The app can still be downloaded, but it will not work.
Here's how it works:
Add a new block rule
In the Tech Lockdown dashboard, go to the Content Policy section and add a new block rule with Facebook selected

Customize the schedule
Select a schedule if you want to only block Facebook on specific recurring days and times. Otherwise, leave the schedule blank to block Facebook 24/7.

Specify who the rule applies to
Select an audience if you want to only block Facebook from specific people. Otherwise, leave the audience blank to block Facebook from everyone.

Connect Devices
Go to the Devices section of the Tech Lockdown dashboard and follow the setup instructions to connect devices to the Content Policy

Optional: Lock your Tech Lockdown Profile
If you are self-restricting access to Facebook, you can lock your Tech Lockdown profile so that you have to wait a certain amount of time before you can unblock Facebook.