How to Repair Containers.json (Free Download)

Last Updated: 11/24/2023
[Time Needed for Reading: ~4-6 minutes]

JSON files such as containers.json are categorized as Internet Web (JavaScript Object Notation) files. As a JavaScript Object Notation file, it was created for use in Mozilla Firefox 69.0.1 by Mozilla Foundation.

containers.json was initially released with Tor Browser Bundle 8.5.5 on 09/03/2019 for the Windows 10 Operating System. The newest file release date for Mozilla Firefox 69.0.1 was 09/18/2019 [version 69.0.1].

This article discusses complete file details, JSON file troubleshooting instructions for problems with containers.json, and a comprehensive set of free downloads for every file version that has been catalogued by our team.

File Analysis Provided by Jason Geater (Author)


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File Overview


General Information
File Name: containers.json
File Extension: JSON file extension
File Type: Internet Web
Description: JavaScript Object Notation
User Popularity Rating:
 
Developer and Software Information
Software Program: Mozilla Firefox 69.0.1
Developer: Mozilla Foundation
Software: Mozilla Firefox
Software Version: 69.0.1
File Details
File Size (Bytes): 939
Oldest File Date: 11/22/2019
Latest File Date: 02/25/2020


What are containers.json Error Messages?


General containers.json Runtime Errors

containers.json file errors often occur during the startup phase of Mozilla Firefox, but can also occur while the program is running. These types JSON errors are also known as “runtime errors” because they occur while Mozilla Firefox is running. Here are some of the most common containers.json runtime errors:

Microsoft Visual C++ Runtime Library

Runtime Error!

Program: C:\Users\Tester\AppData\Roaming\Mozilla\Firefox\Profiles\q5zeb2xq.default-release\containers.json

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.


Most JSON errors are due to missing or corrupt files. Your containers.json file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Mozilla Firefox), or deleted by a malware infection. Furthermore, containers.json file corruption could be caused from a power outage when loading Mozilla Firefox, system crash while loading or saving containers.json, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.



How to Fix containers.json Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your containers.json issue. These troubleshooting steps are listed in the recommended order of execution.


Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the containers.json error, please proceed to the Step 2 below.

Step 2: If recently installed Mozilla Firefox (or related software), uninstall then try reinstalling Mozilla Firefox software.

You can uninstall Mozilla Firefox software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for Mozilla Firefox 69.0.1 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Mozilla Firefox software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Mozilla Firefox 69.0.1

Mozilla Foundation

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many containers.json error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the containers.json error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.



If Those Steps Fail: Download and Replace Your containers.json File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate containers.json file version. We maintain a comprehensive database of 100% malware-free containers.json files for every applicable version of Mozilla Firefox. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download containers.json Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Mozilla Firefox folder location:
    Windows 10: C:\Users\Tester\Desktop\Tor Browser\Browser\TorBrowser\Data\Browser\profile.default\
    Windows 10: C:\Users\Tester\AppData\Roaming\Mozilla\Firefox\Profiles\q5zeb2xq.default-release\
    Windows 10: C:\Users\Tester\AppData\Roaming\Mozilla\Firefox\Profiles\za4grs9g.default-beta\
    Windows 10: C:\Users\Tester\Documents\FirefoxPortable\Data\profile\
  4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve containers.json problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.



Download containers.json Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying containers.json to your appropriate Windows system directory. Mozilla Foundation typically does not release Mozilla Firefox JSON files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing containers.json and all other JSON files for Mozilla Firefox. An incorrectly installed JSON file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10


Files Related to containers.json


JSON Files Related to containers.json

File Name Description Software Program (Version) File Size (bytes) File Location
PreSignInSettingsConfi... JavaScript Object Notation Mozilla Firefox 70.0b13 21403 C:\Users\Tester\AppData\Local\
times.json JavaScript Object Notation Mozilla Firefox 70.0b13 50 C:\Program Files\WindowsApps\Microsoft.NET.Nati...
PreSignInSettingsConfi... JavaScript Object Notation Mozilla Firefox 70 21337 C:\Users\Tester\AppData\Local\
sessionCheckpoints.json JavaScript Object Notation Mozilla Firefox 69.0.1 288 C:\Program Files\WindowsApps\Microsoft.SkypeApp...
manifest.json JavaScript Object Notation Mozilla Firefox 69.0.1 229 C:\Windows\PolicyDefinitions\

Other Files Related to containers.json

File Name Description Software Program (Version) File Size (bytes) File Location
setupact.log Log Mozilla Firefox 69.0.1 60976 C:\Windows\Panther\UnattendGC\
WmiApRpl.ini Windows Initialization Mozilla Firefox 70.0b13 29736 C:\Windows\inf\WmiApRpl\0009\
api-ms-win-core-sysinf... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 19064 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
diagwrn.xml Extensible Markup Language Mozilla Firefox 70.0b13 44683 C:\Windows\Panther\UnattendGC\
diagwrn.xml Extensible Markup Language Mozilla Firefox 69.0.1 35158 C:\Windows\Panther\UnattendGC\


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