Privacy Policy for Four Line
Last Updated: March 2026
1. Introduction
Thank you for using "Four Line". We respect your privacy and are committed to protecting it. This Privacy Policy explains our practices regarding the collection, use, and disclosure of information when you use our Chrome Extension.
2. Information Collection and Use
We do NOT collect, store, or transmit any personal data.
All data used by the Four Line extension is stored locally on your device using Chrome's local storage mechanisms. This includes:
Because everything is stored locally, your browsing data, active sessions, and AI chats never leave your browser and are never transmitted to our servers (because we don't have any).
3. Permissions Explained
Our extension requires certain permissions to function properly. Here is why we need them:
declarativeNetRequest & host permissions (*.openai.com, *.claude.ai, etc.):
storage:
webNavigation:
4. Third-Party Services
The extension acts as a unified workspace for third-party AI services (like ChatGPT, Claude, Gemini). When you interact with these services through our extension, you are interacting directly with those providers. We do not intercept or monitor your messages. Please refer to the privacy policies of the respective AI providers (OpenAI, Anthropic, Google, etc.) to understand how they handle your data.
5. Changes to This Privacy Policy
We may update our Privacy Policy from time to time. We will notify you of any changes by updating the "Last Updated" date at the top of this Privacy Policy.
6. Contact Us
If you have any questions or suggestions about our Privacy Policy, please contact the developer via the support tab on the Chrome Web Store listing.