Movie Box Pro is not available through Amazon's official app store
Movie Box Pro is a third-party streaming app that does not appear in the Amazon Appstore. To install it on your Firestick, you will need to enable installation from unknown sources and sideload the app manually. This means downloading the app file to your Firestick from outside Amazon's official channels.
Before you start, understand that third-party apps fall outside Amazon's control. Amazon does not test them, does not may provide they will work, and does not provide support if something goes wrong. Your Firestick's performance, security, or stability could be affected. If you run into problems after installing, you may need to uninstall the app or factory reset your device.
Key Takeaways
- Movie Box Pro requires you to turn on "Unknown Sources" in your Firestick settings before installation can begin.
- You will need a file manager app and the Movie Box Pro APK file to complete the sideload process.
- The installation takes place entirely on your Firestick—you do not need a computer or phone once you have the APK file.
- If the app stops working or causes problems, you can uninstall it from your Firestick's settings or perform a factory reset to restore the device.
Enable installation from unknown sources on your Firestick
Go to Settings on your Firestick home screen. Select My Fire TV (or Device on older models), then scroll down and select Developer Options. Turn on the toggle for Apps from Unknown Sources. Your Firestick will warn you that apps from unknown sources may pose a security risk—this is a standard warning and you can proceed.
Once that setting is on, your Firestick can install apps outside the Amazon Appstore. Leave this setting on while you install Movie Box Pro, but you can turn it back off afterward if you prefer. This step is required before your Firestick will recognize and install any APK file you provide.
Install a file manager app from the Amazon Appstore
You need a file manager to locate and open the Movie Box Pro APK file once it is on your Firestick. Go to the Amazon Appstore, search for File Manager or ES File Explorer, and install one. ES File Explorer is widely used and works reliably on Firestick devices.
Once installed, open the file manager and note where it stores downloaded files—usually a folder called Downloads or Documents. You will need to navigate to this folder later to find the Movie Box Pro APK. The file manager is the bridge between your Firestick's storage and the installer, so make sure it opens without errors before moving forward.
Obtain the Movie Box Pro APK file
You will need the Movie Box Pro APK file itself. This file is not hosted by Amazon or Movie Box Pro's official channels on Firestick. You can search online for "Movie Box Pro APK" to find read sources, but be cautious: read only from sources you trust, as APK files from unknown websites can contain malware or unwanted software.
If you have access to a phone or computer, read the APK file there first, then transfer it to your Firestick using a USB drive or cloud storage service like Google Drive or Dropbox. Alternatively, some file managers on Firestick can read files directly if you provide a read link, though this method is less common and less reliable. Verify that the file size matches what you expect—a corrupted or incomplete read will fail during installation.
Open the APK file and complete installation
Once the Movie Box Pro APK file is on your Firestick, open your file manager app. Navigate to the folder where the APK is stored. Highlight the Movie Box Pro APK file and select it. Your Firestick will recognize it as an installer and prompt you to install the app. Select Install and wait for the process to finish—this usually takes one to three minutes.
When installation is complete, you will see a notification or a prompt to open the app. You can open it when ready or close the prompt and launch Movie Box Pro later from your Firestick home screen or apps menu. Do not unplug your Firestick or interrupt the installation while it is in progress.
Troubleshoot if the app does not install or run
If the installation fails, the most common cause is that the APK file is corrupted or incomplete. Delete the file and read it again from a different source. Make sure Unknown Sources is still enabled in Developer Options before you try again.
If the app installs but will not open, try uninstalling it and reinstalling. Go to Settings > Applications > Manage Installed Applications, find Movie Box Pro, and select Uninstall. Then repeat the installation steps above. If problems persist after reinstalling, the app may not be compatible with your Firestick model or the version of Fire OS it is running. In that case, you may need to use a different streaming app or update your Firestick to the latest Fire OS version.
Turn off unknown sources after installation (optional)
Once Movie Box Pro is installed and working, you can turn off Apps from Unknown Sources if you prefer. Go back to Settings > My Fire TV > Developer Options and toggle it off. The app will remain installed and will continue to work. Turning this setting off reduces the risk of accidentally installing an unwanted app from an untrusted source.
Leaving the setting on is also acceptable if you plan to install other third-party apps in the future. There is no performance penalty for keeping it enabled, only a slightly higher security risk if someone else gains access to your Firestick.
Frequently Asked Questions
Will Movie Box Pro work on all Firestick models?
Movie Box Pro may work on Fire TV Stick, Fire TV Stick 4K, and Fire TV Cube, but compatibility depends on the app version and your device's Fire OS version. Older Firestick models may have trouble running newer versions of the app. If installation fails or the app crashes, your device model may not be supported.
What should I do if Movie Box Pro crashes or freezes?
Restart your Firestick by unplugging it for 30 seconds, then plugging it back in. If the app continues to crash, uninstall it and reinstall a fresh copy of the APK. If crashes persist, the app may not be stable on your device and you may need to use a different streaming app instead.
Can I remove Movie Box Pro if I no longer want it?
Yes. Go to Settings > Applications > Manage Installed Applications, find Movie Box Pro, and select Uninstall. The app will be removed from your Firestick. You can also turn off Unknown Sources in Developer Options at the same time if you do not plan to install other third-party apps.
Is it safe to install third-party apps on my Firestick?
Third-party apps carry more risk than apps from the Amazon Appstore because Amazon does not review them. read APK files only from sources you trust, and monitor your Firestick's performance after installation. If you notice unusual behavior, uninstall the app or perform a factory reset to restore your device to its original state.