Privacy Policy - Marko Browser Extension

Last updated: May 3, 2026

Data we collect

The Marko browser extension transmits the following data to our backend (Firebase):

• Authentication information: email and password (encrypted) for login
• Bookmark data: titles, URLs, descriptions, tags, and folder organization
  of bookmarks you manually add or import
• Browsing activity (limited): only URLs and titles of pages you actively
  choose to bookmark via the extension. We do NOT track your browsing in the
  background.

How we use your data

Your data is used solely to:
- Authenticate you in the Marko service
- Sync your bookmarks across your devices
- Provide the bookmark management features you requested

We do NOT:
- Sell your data to third parties
- Use your data for advertising
- Track your browsing activity outside of bookmarks you manually save

Data storage

• All data is stored on Google Firebase servers (Cloud Firestore)
• Data is encrypted in transit (HTTPS) and at rest
• Authentication is handled by Firebase Authentication

Your rights (GDPR)

You can:
- Access your data at any time via the Marko web app
- Export your bookmarks
- Delete your account, which permanently removes all your data

Third-party services

Marko uses the following third-party services:
- Firebase (Google) for authentication, database, and hosting
- Stripe for premium subscription payments
- SendGrid for transactional emails

Contact

For privacy questions: contact@marko-bookmarks.app

Changes

We may update this policy. The latest version is always available at
https://marko-bookmarks.app/legal/privacy-extension