Privacy Policy for modcore Extension Manager (modcore EM)

Last updated: October 14, 2025

modcore Extension Manager (modcore EM) is an open-source Chrome extension developed by a team of personal individuals operating from Germany, within the European Union. Your privacy is paramount to us, and we are committed to transparency regarding data handling.

1. Our Commitment to Data Minimization and Local Processing

modcore EM is designed with a fundamental focus on data minimization. This means we only process the data that is strictly necessary for the extension's functionality.
We do not collect or transmit any personally identifiable data, nor any anonymous data, to our servers or any third-party servers for purposes such as "improving user experience" or analytics.
Our core principle is that your data remains on your device, under your complete control.

2. Local Data Storage and Purpose

modcore EM stores certain data locally on your device to ensure its smooth functioning and to provide you with a customized experience. This locally stored data includes:

• Settings: Your preferences for how modcore EM operates (e.g., display options, default behaviors).
  
  

• Profiles: Configurations you create for different extension setups (e.g., sets of enabled/disabled extensions, custom names).
  
  

• Groups: Organization of your extensions into custom groups for easier management.
  
  

• Cached API Data: Certain non-personally identifiable metadata from the GitHub API, cached locally to improve performance.
  
  

• Other functional data: Any other data essential for the direct, local operation of the extension.
  
  

This data is stored exclusively on your local machine and is not transmitted to our servers or any third-party servers unless explicitly stated and with your informed consent (as detailed below for Cloud Sync and voluntary bug reports).

2.1. Accessing Your Local Data

You have full control and access to your locally stored data:

• Developer Tools: You can inspect local storage data via your browser’s developer tools.
  
  

• In-Built Backup Feature (v2.3.81+): Allows exporting your local settings, profiles, and groups as a JSON file for personal backups and transfers.
  
  

3. Server Requests to GitHub API

modcore EM makes server requests to the GitHub API for specific, user-initiated functionalities (e.g., “Support the Developer” or “Extension Scan”).
These requests:

• Do not transmit personal or local data to GitHub.
  
  

• Retrieve only publicly available metadata.
  
  

• Cache responses locally for performance.
  
  

• Are subject to GitHub’s standard web request handling (including IP and user agent transmission).
  
  

For more information, review GitHub’s Privacy Policy.

4. Personally Identifiable Data (Optional)

While modcore EM operates without requiring any personal data, users may choose to enter identifying information in local profiles or settings. Such data remains local to your device.

5. Data Collection for Bug Reports (Voluntary)

Users may voluntarily provide local data when submitting bug reports.

• Purpose: Diagnose and resolve technical issues.
  
  

• Anonymization: Recommended before submission.
  
  

• Consent: Voluntary submission constitutes explicit consent for use in debugging only.
  
  

6. Cloud Sync Feature (chrome.sync storage)

Introduced in version 2.3.81, modcore EM supports optional Chrome Sync integration.

• Disabled by default and requires explicit user activation.
  
  

• Data sync is handled directly by Google through the Chromium browser.
  
  

• We do not access or control synced data.
  For details, see Google’s Privacy Policy.
  
  

7. Content Security Policy (CSP)

modcore EM implements a strict CSP:

"content_security_policy": {

  "extension_pages": "script-src 'self'; object-src 'self'"

}

This ensures only internal scripts and resources can execute, mitigating XSS and injection risks.

8. Third-Party Addons and Forks

modcore EM is open-source.

• Independent addons/forks may have their own privacy practices.
  
  

• If none are provided, this policy applies only to the core modcore EM functionality.
  
  

• We are not responsible for third-party forks or modifications.
  
  

9. Data Security

All data processed by modcore EM is handled locally.
Voluntarily submitted data (e.g., bug reports) is treated confidentially and used only for its stated purpose.

10. Website Analytics (Google Sites)

While the modcore EM extension itself does not use analytics or tracking, the official modcore Extension Manager website (hosted via Google Sites) uses Google Analytics to help us understand user interactions and improve site usability.

• Data Collected: Information such as device type, browser type, country, page visits, and session duration. This data is aggregated and anonymized and cannot be used to personally identify visitors.
  
  

• Purpose: Analyze website traffic and improve content relevance.
  
  

• Tool Used: Google Analytics (by Google LLC).
  
  

• Cookies: Google Analytics may use cookies stored on your browser. You can disable cookies or use browser settings to block analytics tracking.
  
  

• Opt-Out: You can opt out of Google Analytics tracking by using the Google Analytics Opt-out Browser Add-on.
  
  

• Data Handling: Data collected by Google Analytics is processed by Google in accordance with their privacy policy. See Google Privacy Policy for details.
  
  

• No Connection to modcore EM Extension: Analytics tracking applies only to the website, not to the modcore EM extension.
  
  

11. Your Rights (under GDPR)

As an EU-based user, you have the right to:

• Access, correct, or erase your personal data.
  
  

• Restrict or object to processing.
  
  

• Receive your data in a portable format.
  
  

• Lodge a complaint with a supervisory authority if your rights are violated.
  
  

Since modcore EM primarily processes data locally, these rights apply mainly to any voluntarily provided information (e.g., bug reports or contact inquiries).

12. Contact Us

For privacy questions or GDPR-related requests, please contact:
📧 NGDE@WEB.DE

Thank you for using modcore EM!