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GPT Master Web Extension: Privacy Policy

Effective Date: March 9, 2026

This policy explains how GPT Master Web Extension handles your information when you use the Chrome extension and related services.

Single Purpose

Extension Purpose: GPT Master Web Extension has a single, focused purpose: to enhance the ChatGPT user experience with productivity tools including smart follow-up suggestions, conversation organization (folders, starring/pinning), message timestamps, and conversation management features. The extension does not perform any other functions beyond enhancing ChatGPT productivity and organization.

1. Data We Process

  • Local Extension Data: Folder organization data, conversation mappings, stars/pins, message bookmarks, and extension settings are stored in your browser (chrome.storage.local).
  • Enhanced Follow-up Context (Optional): If you choose Enhanced Follow-ups and grant consent, GPT Master sends limited recent message context plus conversation identifiers to GPT Master APIs to generate follow-up suggestions.
  • Account Data (Optional): If you sign in with Google, we process account profile fields such as email, name, avatar URL, Google account ID, plan tier, and a session token.
  • Analytics and Diagnostic Data: We use Google Analytics 4 (GA4) for usage and reliability analytics. Analytics collection is controlled by the in-product Usage Analytics setting.
  • Web Browsing Scope: GPT Master runs only on ChatGPT pages (chat.openai.com and chatgpt.com) and does not monitor your browsing history on other websites.

2. How We Use Data

  • Provide core extension features such as folders, stars/pins, timestamps, and follow-ups
  • Generate Enhanced Follow-up suggestions when you enable that mode
  • Authenticate optional account sign-in and support plan/entitlement checks
  • Monitor performance, debug failures, and improve product quality

We do not sell personal data or use extension data for targeted advertising.

2.1. Limited Use Policy

We limit our use of your data to the practices disclosed in this policy. We do not use your data for any purpose other than providing and improving the GPT Master Web Extension service.

3. Data Sharing

  • GPT Master APIs: Enhanced Follow-up requests and account/auth flows communicate with GPT Master API endpoints.
  • Google Services: Google OAuth is used when you choose to sign in, and Google Analytics 4 is used for product analytics.
  • No Data Sale: We do not sell your personal data to advertisers or data brokers.

4. Data Storage & Security

  • On-Device Storage: Core extension state is stored locally on your device using browser extension storage APIs.
  • Server Transmission: When Enhanced Follow-ups or account sign-in are used, required request data is transmitted to GPT Master services over HTTPS.
  • Enhanced Follow-up Storage Behavior: Limited message context sent for enhanced follow-up generation is not stored as conversation history.

5. Data Retention

Data stored locally in the extension remains on your device until you uninstall GPT Master or manually clear Chrome storage. Optional account/session and analytics records may be retained on service providers for operational, security, and legal purposes.

6. Your Rights & Choices

  • Follow-up Mode Control: You can choose Off, Heuristic, or Enhanced follow-up mode in extension settings.
  • Account Control: Sign-in is optional. You can sign out at any time.
  • Local Data Control: You can manage or delete local extension data via browser extension storage tools.
  • Analytics: You can disable Usage Analytics in extension settings at any time.
  • Uninstall: Removing the extension deletes local extension data from your browser profile.

7. Children's Privacy

GPT Master Web Extension is not intended for children under the age of 13. We do not knowingly collect personal information from children.

8. Changes to This Privacy Policy

We may update this privacy policy from time to time. When we make material changes, we will update the "Effective Date" and post the updated policy on this page.

9. Contact Information

Privacy Questions: Contact us at [email protected]. We will respond to privacy-related inquiries within 30 days.

Data Protection Rights: If you are located in the EU, UK, or other jurisdictions with data protection laws, you may have additional rights. Please contact us to exercise these rights.