How to Turn On Unknown Sources on Amazon Firestick (Step-by-Step Guide)

If you want to install third-party applications on your Amazon Firestick, you need to enable Unknown Sources (also called Install Unknown Apps on newer Firestick versions).

This guide is written for beginners and works on all Amazon Firestick models, including the latest Fire OS.

Why Enable Unknown Sources on Firestick?

By default, Amazon Firestick only allows apps from the Amazon App Store.
To install third-party apps, you must turn on Unknown Sources.

This is commonly needed for:

Entertainment applications
Utility tools
Custom or third-party apps

Step-by-Step: How to Turn On Unknown Sources on Amazon Firestick

Step 1: Open Firestick Settings

Turn on your Amazon Firestick
From the Home Screen, go to the top menu
Click the ⚙️ Settings icon

Step 2: Open My Fire TV

In Settings, scroll right
Select My Fire TV

(On older Firestick versions, this may appear as Device)

Step 3: Enable Developer Options

Click Developer Options

If Developer Options is not visible:

Open About
Select Fire TV Stick
Press the OK button on your remote 7 times
Go back — Developer Options will now appear

Step 4: Install Unknown Apps (New Firestick Method)

Inside Developer Options, click Install Unknown Apps
Select Downloader
Turn it ON

📺 New Firestick Message You May See:

“Turn on Unknown Sources to install this application”

Simply select TURN ON or ALLOW.

Step 5: Allow Permissions

When prompted, click Allow
Continue installing your application

Older Firestick Versions

On older Fire OS versions, you may see:

Apps from Unknown Sources

Just turn this option ON and confirm.

Is It Safe to Enable Unknown Sources?

Yes — if you only install apps from trusted sources.

Safety Tips:

Avoid unknown or suspicious apps
Do not give unnecessary permissions
You can turn Unknown Sources OFF after installation

Common Problems & Fixes

Developer Options Missing

✔ Fix: Use the 7-click method in the About section

App Installation Blocked

✔ Fix: Make sure Downloader is enabled under Install Unknown Apps

Frequently Asked Questions (FAQ)

What does Unknown Sources mean on Firestick?

It allows installation of apps not available on the Amazon App Store.

Do I need to keep it enabled?

No. You can turn it OFF after installing your app.

Does this work on new Firestick models?

Yes. This guide is updated for new and old Firestick versions.

Final Words

Turning on Unknown Sources on Amazon Firestick is a simple process once you know the steps. This setting allows you to install helpful third-party applications and enjoy more flexibility on your device.

If you need help with setup, feel free to contact support.