This article is part of our guide Fire TV Stick for IPTV: Setup, Settings and Everyday Tips.
Most people only ever install apps from the Amazon Appstore — and that is the safest option. But some legitimate player apps are distributed directly by their developers. To install them on a Fire TV device, you need to allow installs from unknown sources, a setting found in Developer Options.
This guide shows how to find those settings, what they do and how to use them without putting your device at risk.
Step 1: Reveal Developer Options
On newer Fire TV software, Developer Options are hidden by default.
- Open Settings → My Fire TV → About.
- Highlight your device name (for example "Fire TV Stick 4K").
- Press Select on the remote seven times. A message confirms that you are now a developer.
- Go back to My Fire TV — Developer Options now appears in the list.
On some older software versions, Developer Options are visible straight away.
Step 2: Allow installs for one specific app
Newer Fire TV software asks you to grant permission per app rather than for the whole device. That is safer: only the app you trust can install other apps.
- Install the Downloader app (or another file manager you trust) from the Amazon Appstore.
- Go to Settings → My Fire TV → Developer Options → Install unknown apps.
- Select Downloader and switch it On.
On older software, the setting is called Apps from Unknown Sources and applies to the whole device.
Step 3: Install from the developer's official source
Open Downloader and enter the download address published on the player developer's official website. After installing, open the app and log in as described in the Fire TV Stick setup guide.
Step 4: Switch the permission off again
Once the app is installed, return to Install unknown apps and switch Downloader Off. You can turn it back on the next time you need it.
What the other Developer Options do
| Option | What it does | Recommendation |
|---|---|---|
| Install unknown apps | Lets a chosen app install other apps | Enable only when needed |
| ADB debugging | Allows another device on your network to control the Fire TV via Android Debug Bridge | Leave off unless you specifically need it |
Leaving ADB debugging on can let other devices on your network connect to your Fire TV. Only enable it for a specific task and turn it off afterwards.
Staying safe
- Only install apps from sources you trust, ideally the developer's own website.
- Avoid "all-in-one" or "free premium content" apps. These are commonly linked to unlicensed content and malware. See the risks of unlicensed streaming.
- Keep Fire OS updated for the latest security fixes.
- Remove apps you no longer use.
For a broader look at the risks and precautions, read sideloading apps safely.
Updating or removing apps installed this way
- To update: temporarily switch Install unknown apps back on for your installer, download the new version from the developer's official website and install it over the old one. Settings are usually kept. Switch the permission off again afterwards.
- To remove: go to Settings → Applications → Manage Installed Applications, select the app and choose Uninstall.
- If the device slows down after installing apps, remove the ones you do not use; see Fire TV Stick slow or lagging?.
Frequently asked questions
Why can't I see Developer Options on my Fire TV?
They are hidden on newer software. Open Settings → My Fire TV → About, highlight the device name and press Select seven times.
Does enabling unknown sources void my warranty?
Enabling the setting is an option Amazon provides, but installing harmful or modified apps can cause problems that are not covered. Stick to trusted sources.
Do apps installed this way update automatically?
Usually not. Apps installed outside the Appstore generally need to be updated manually, so check the developer's website from time to time.
Safe installs in four steps
Reveal Developer Options from the About screen, grant "Install unknown apps" only to a trusted installer, install from the developer's official source and switch the permission off again. For everything else about your device, see the Fire TV Stick for IPTV guide.