Privacy Policy

Marketplace Tracker & Enhancer

Last Updated: January 2026

1. Introduction

Marketplace Tracker & Enhancer (“Extension”) is a Chrome browser extension designed to help users track prices, monitor listings, and manage their Facebook Marketplace browsing experience. This Privacy Policy explains how the Extension collects, uses, and protects your information.

2. Information We Collect

2.1 Information Collected from Your Use

The Extension collects and processes the following types of information:

Marketplace Data:

• Product titles, prices, and descriptions from Facebook Marketplace listings you view
• Seller information (name, profile details)
• Listing URLs and timestamps
• Price history for tracked items
• Product images (cached locally for comparison purposes)

Browsing Activity:

• Pages you visit on Facebook Marketplace
• Listings you track or favorite
• Search queries you perform within Marketplace
• Your interaction patterns (views, clicks, tracking actions)

Device Information:

• Your browser type and version
• Operating system
• Extension version
• Unique installation identifier (for troubleshooting only)

2.2 Information We Do NOT Collect

We do NOT collect:

• Your Facebook login credentials or personal account information
• Messages, conversations, or private communications
• Payment or financial information
• Location data (beyond what’s visible in marketplace listings)
• Browsing history outside of Facebook Marketplace
• Personal identification information not directly related to marketplace activity

3. How We Use Your Information

3.1 Primary Uses

Your information is used to:

• Enable price tracking and alert functionality
• Maintain your tracked listings and watchlists
• Generate price history and comparison analytics
• Provide deal recommendations based on your tracking behavior
• Enhance the user interface with relevant marketplace data
• Display notifications for price changes and new listings matching your criteria

3.2 Technical Operations

• Troubleshoot Extension errors and performance issues
• Analyze feature usage to improve Extension functionality
• Detect and prevent abuse or unauthorized access
• Maintain security and data integrity

4. Data Storage and Retention

4.1 Local Storage

By default, all marketplace data is stored locally on your device using browser local storage. This includes:

• Your tracked listings and prices
• Alert preferences
• Search history
• Comparison data
• Viewing history

You maintain complete control over this data and can clear it at any time through Extension settings or Chrome storage management.

4.2 Optional Cloud Synchronization

If you enable optional cloud sync features (if available), your data may be stored on our secure servers to enable:

• Cross-device synchronization
• Backup and recovery
• Device switching

Cloud storage is encrypted and optional. You can disable it at any time, and your data will be removed from our servers after 30 days of inactivity.

4.3 Data Retention

• Local data: Retained indefinitely until you clear it
• Cloud data (if enabled): Retained while you use the feature; deleted 30 days after disabling sync
• Server logs: Retained for 90 days for security and troubleshooting

5. Data Security

5.1 Security Measures

We implement industry-standard security measures including:

• HTTPS encryption for all data transmission
• Secure storage protocols for sensitive data
• Regular security audits and updates
• Limited access to user data (accessed only by essential personnel)
• Automatic security scanning for malware and vulnerabilities

5.2 Your Responsibility

You are responsible for:

• Maintaining the security of your device
• Keeping your browser and Extension updated
• Using strong passwords for your accounts
• Protecting your local storage data

6. Third-Party Services

6.1 What We Share

The Extension does NOT sell, trade, or share your marketplace data with third parties for marketing or advertising purposes.

6.2 Service Partners

We may use third-party services for:

• Analytics (anonymized, aggregated data only)
• Cloud hosting (if sync features are enabled)
• Error reporting and diagnostics
• Email notifications (if enabled)

These partners are contractually obligated to maintain data confidentiality.

6.3 Legal Requirements

We may disclose information when required by law or to protect against fraud, security threats, or illegal activity.

7. Facebook Marketplace Terms

7.1 Compliance

The Extension respects Facebook’s Terms of Service and Marketplace policies. Users are responsible for ensuring their use of the Extension complies with:

• Facebook’s Terms of Service
• Marketplace Community Standards
• All applicable local and international laws

7.2 Not Affiliated

This Extension is not affiliated with, endorsed by, or sponsored by Facebook, Inc. or Meta Platforms, Inc.

7.3 Data Usage Rights

By using this Extension, you authorize it to:

• Display publicly available Facebook Marketplace information
• Store and cache that information on your device
• Process and analyze that information for tracking and analytics features

You do NOT authorize the Extension to:

• Access private messages or non-public information
• Modify your Facebook account or listings
• Perform unauthorized transactions
• Scrape data for commercial resale

8. Your Rights and Choices

8.1 Access and Control

You have the right to:

• Access all your stored data through Extension settings
• Export your data in standard formats
• Modify or delete tracked items at any time
• Clear all local storage with one action
• Disable cloud sync features at any time
• Uninstall the Extension at any time (all data is removed)

8.2 Cookies and Tracking

The Extension uses browser local storage (similar to cookies) for:

• Saving your preferences
• Maintaining tracked listings
• Storing analytics data

You can clear this data at any time through:

• Extension settings menu
• Chrome Settings > Privacy and Security > Clear Browsing Data
• Uninstalling the Extension

9. Children’s Privacy

The Extension is not intended for users under 13 years of age. We do not knowingly collect information from children under 13. If we become aware of such collection, we will take immediate action to delete this information.

10. Data Breach and Security Incidents

10.1 Notification

In the event of a confirmed data breach affecting personal information, we will:

• Notify affected users within 30 days
• Provide information about the breach and steps we’re taking
• Explain steps users can take to protect themselves

10.2 Incident Response

We maintain a security incident response plan and will:

• Investigate any suspected breaches immediately
• Work with relevant authorities as required
• Implement remediation measures
• Improve security practices to prevent recurrence

11. Changes to This Policy

We may update this Privacy Policy at any time. Changes will be effective immediately upon posting. We will notify users of material changes through:

• Updated “Last Updated” date
• In-Extension notifications for significant changes
• This policy document

Your continued use of the Extension after changes constitutes acceptance of the updated policy.

12. Contact Information

For privacy-related questions, concerns, or requests, please contact:

Email: [Your Email Address] Privacy Contact: [Your Name/Title]

We will respond to privacy inquiries within 30 days.

13. Regional Privacy Rights

13.1 European Union (GDPR)

If you are located in the EU, you have additional rights including:

• Right to access your data
• Right to rectification (correction)
• Right to erasure (“right to be forgotten”)
• Right to restrict processing
• Right to data portability
• Right to object to processing

To exercise these rights, contact our privacy team at the email provided above.

13.2 California (CCPA/CPRA)

California residents have the right to:

• Know what personal information is collected
• Delete personal information collected
• Opt-out of the sale of personal information
• Non-discrimination for exercising these rights

13.3 Other Jurisdictions

We comply with applicable privacy laws in all jurisdictions where the Extension is used.

14. Data Processing Agreement

For users in regions with strict data protection requirements (GDPR, CCPA, etc.), we maintain a Data Processing Agreement available upon request that outlines:

• Data processing purposes and methods
• Data security and confidentiality obligations
• Sub-processor information
• Compliance with regulatory requirements

15. Glossary

Local Storage: Data stored directly on your device by your browser, not on external servers.

Cloud Sync: Optional feature that synchronizes your data across multiple devices using encrypted cloud storage.

Marketplace Data: Information visible on Facebook Marketplace, including listings, prices, seller profiles, and product details.

Anonymized Data: Information processed to prevent identification of individuals.

Data Breach: Unauthorized access to or disclosure of confidential data.

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Acknowledgment

By using Marketplace Tracker & Enhancer, you acknowledge that you have read and understood this Privacy Policy and agree to its terms.