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Clear Firefox "Multi-Account Containers" data

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Works with any Linux distroWorks with any Linux distribution that can run bash scripts.
  • Linux onlyThis script improves your privacy on Linux
  • Single actionThis page belongs to a script, containing basic changes to achieve a task.
  • Impact: High

    System Functionality / Data Loss Risk: High

    This action improves privacy with high impact when you run the recommended script.

  • Bash (Shell script)These changes use Linux system commands to update your settings.
  • Sudo/root requiredThis script requires privilege access to do the system changes
  • Fully reversible

    You can fully restore this action (revert back to the original behavior) using this website.

    The restore/revert methods provided here can help you fix issues.

Overview​

The containers.json file stores the details of containers used by the Container Tabs feature 1.

Not Advised

This script should only be used by advanced users.

This script is not recommended for daily use as it breaks important functionality.

Consider creating a system backup before doing any changes.

Sources
PrivacyLearn.com maintains strict sourcing standards for accuracy, integrity and up-to-date content. Our content relies on authoritative sources including vendor documentation, industry standards, and verified research. Learn more about our verification process and quality standards in our editorial standards page.

Apply Now​

Choose one of three ways to apply:

Download script​

Download and run the script directly
  • No app needed
  • Offline usage
  • Free
  • Open-source
Help

How to apply or restore "Clear Firefox "Multi-Account Containers" data" using script​

  • ≈ 3 min to complete
  • Tools: Web Browser
  • Difficulty: Medium
  • ≈ 5 instructions
  1. 1

    Download

    Download the script file by clicking on the   Apply protection  button above.
    Use   Undo protection button above to restore changes.
  2. 2

    Keep the file

    If warned by your browser, keep the file.
  3. 3

    Open

    Open the downloaded file.
  4. 4

    Exit

    Once it's done, press any key to exit the window.
  5. 5

    Restart

    Restart your computer for all changes to take effect.

Apply with privacy.sexy​

Guided, automated application with safety checks
  • Recommended for most users
  • Includes safety checks
  • Free
  • Open-source
  • Popular
  • Offline/Online usage
Open privacy.sexy
Help

How to apply or restore "Clear Firefox "Multi-Account Containers" data" using privacy.sexy​

  • ≈ 3 min to complete
  • Tools: privacy.sexy
  • Difficulty: Simple
  • ≈ 4 instructions
privacy.sexy is free and open-source application that lets securely apply this action easily with more advanced options.
  1. 1

    Open or download

    Open or download the desktop application
  2. 2

    Choose script

    1. Search for the script name: Clear Firefox "Multi-Account Containers" data
    2. Check the script by clicking on the checkbox.
  3. 3

    Run

    Click on ▶️ Run button at the bottom of the page.

    This button only appears on desktop version (recommended). On browser, use 💾 Save button.

Run commands​

Copy and run commands manually Requires technical knowledge
Apply changes
# Delete files matching pattern: "~/.mozilla/firefox/*/containers.json"
if ! command -v 'python3' &> /dev/null; then
  echo 'Skipping because "python3" is not found.'
else
  python3 <<EOF
import glob
import os
path = '~/.mozilla/firefox/*/containers.json'
expanded_path = os.path.expandvars(os.path.expanduser(path))
print(f'Deleting files matching pattern: {expanded_path}')
paths = glob.glob(expanded_path)
if not paths:
  print('Skipping, no paths found.')
for path in paths:
  if not os.path.isfile(path):
    print(f'Skipping folder: "{path}".')
    continue
  os.remove(path)
  print(f'Successfully delete file: "{path}".')
print(f'Successfully deleted {len(paths)} file(s).')
EOF
fi
# Delete files matching pattern: "~/.var/app/org.mozilla.firefox/.mozilla/firefox/*/containers.json"
if ! command -v 'python3' &> /dev/null; then
  echo 'Skipping because "python3" is not found.'
else
  python3 <<EOF
import glob
import os
path = '~/.var/app/org.mozilla.firefox/.mozilla/firefox/*/containers.json'
expanded_path = os.path.expandvars(os.path.expanduser(path))
print(f'Deleting files matching pattern: {expanded_path}')
paths = glob.glob(expanded_path)
if not paths:
  print('Skipping, no paths found.')
for path in paths:
  if not os.path.isfile(path):
    print(f'Skipping folder: "{path}".')
    continue
  os.remove(path)
  print(f'Successfully delete file: "{path}".')
print(f'Successfully deleted {len(paths)} file(s).')
EOF
fi
# Delete files matching pattern: "~/snap/firefox/common/.mozilla/firefox/*/containers.json"
if ! command -v 'python3' &> /dev/null; then
  echo 'Skipping because "python3" is not found.'
else
  python3 <<EOF
import glob
import os
path = '~/snap/firefox/common/.mozilla/firefox/*/containers.json'
expanded_path = os.path.expandvars(os.path.expanduser(path))
print(f'Deleting files matching pattern: {expanded_path}')
paths = glob.glob(expanded_path)
if not paths:
  print('Skipping, no paths found.')
for path in paths:
  if not os.path.isfile(path):
    print(f'Skipping folder: "{path}".')
    continue
  os.remove(path)
  print(f'Successfully delete file: "{path}".')
print(f'Successfully deleted {len(paths)} file(s).')
EOF
fi
Help

How to apply or restore "Clear Firefox "Multi-Account Containers" data" using commands​

  • ≈ 2 min to complete
  • Tools: Terminal
  • Difficulty: Medium
  • ≈ 3 instructions
  1. 1

    Open terminal

    Open your terminal application.
  2. 2

    Copy code

    Copy the code:
    Copy Apply Code Copy Revert Code
  3. 3

    Paste & run

    Paste the commands into terminal application and press Enter to run.

    Some changes require a system restart to take effect

Similar Guides​

Wider Goal​

Guides below includes this guide to achieve a wider goal.

See other more general settings that includes this one as one of its actions.

These plans combine multiple privacy settings, including this one, for stronger protection.

This category encompasses a series of scripts aimed at helping users manage and delete their browsing history and related data in Mozilla Firefox. The scripts are ...
Visit category page

Same Goal​

Other guides in Clear Firefox history 

See settings that are in the same category as this guide.

Using other actions in the same category may help you achieve your goal better.

See all 7 guides

About the Creators​

These people have authored this documentation and written its scripts:

  • Avatar of undergroundwires. The creator of PrivacyLearn and privacy.sexy. Black and white portrait showing a person wearing a polka dot tie and suit jacket, reflecting the professional expertise behind the privacy protection tools.
    • Certified security professional
    • 7+ years experience securing banks
    • Open-source developer since 2005
    • EU advisor, Public Speaker, Moderator
    • Hundreds across the globe
    • Testers, reviewers, developers
    • Companies, military agencies
    • Community since 2017
About Us

Reviewed By​

This guide has undergone comprehensive auditing and peer review:

  • Expert review by undergroundwires​

    • Verified technical accuracy and editorial standards
    • Assessed system impact and user privacy risks

  • Public review by large community​

    • Privacy enthusiasts and professionals peer-reviewed
    • Millions of end-users tested across different environments

History​

We continually monitor our guides, their impact and all other privacy options. We update our guides when new information becomes available. On every update, we publicly store who made the change, what has been changed, why the change was made and when the change was made.

Review Change History Our Change Process