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1. What are Cookies and Local Storage
Cookies are small text files that websites store on your device. Local Storage is a browser-provided way
to store data on your device.
As a browser extension, Immerse primarily uses Chrome's Storage API (chrome.storage) to store data, which
is a secure local storage mechanism designed specifically for extensions.
2. How We Use Storage
2.1 Essential Storage
These storage items are necessary for the extension to function properly:
- settings: Your app settings (theme, difficulty, dictionary selection, etc.)
- authToken: Login session information (only after login)
- activeProvider: Currently selected AI provider
2.2 Functional Storage
These storage items are used to provide a better user experience:
- wordbook: Your wordbook data
- learningStats: Learning statistics
- dictionaryCache: Dictionary cache for faster loading
2.3 Optional Storage
The following data is only stored when you use related features:
- providers.*: Your API keys (when using BYOK feature)
- syncSettings: Cloud sync configuration (when sync is enabled)
3. Third-Party Cookies
The Immerse extension itself does not set third-party cookies. However:
- When you use Google login, Google may set its own cookies
- When you use AI features, AI service providers may use cookies
These third-party cookies are subject to their respective privacy policies.
4. Data Retention
- Local data: Stored in your browser until you clear browser data or uninstall the
extension
- Cloud data: Retained until you delete your account or request data deletion
- Session data: Automatically cleared when you log out
5. Managing Your Data
You can manage stored data through:
- Extension settings: Clear local data in the Immerse settings page
- Browser settings: Manage extension data in Chrome settings
- Uninstall extension: Uninstalling the extension will delete all locally stored data
Note: Clearing local data does not affect data that has been synced to the cloud. To
delete cloud data, use the account settings.
6. Contact Us
For questions about cookies or data storage, please contact us: