Privacy Policy

For Udemy.com Dark Mode (Night Theme) Chrome Extension

Last Updated: July 2026

1. Overview & Single Purpose

ExtHub ("we", "us", or "our") operates the Udemy.com Dark Mode (Night Theme) Chrome Extension. Our single purpose is to apply a highly customizable dark mode, night theme, and visual eye-care filters to the Udemy.com website to reduce eye strain and improve your learning experience. We are fully committed to protecting your privacy and complying with the Google Chrome Web Store Developer Program Policies.

2. Permissions We Request and Why

To provide you with a seamless and secure experience, the Extension requires the following permissions:

  • Host Permissions (https://*.udemy.com/*): Required to inject the dark mode CSS styles and functional scripts directly into the Udemy website pages to alter their visual appearance as requested by you.
  • storage: Required to securely save your local preferences (such as the selected theme, brightness, contrast, grayscale, and sepia slider values) as well as to track your trial usage limit and premium authentication status locally.
  • cookies: Required strictly to read the secure session cookie from ExtHub.store. This allows us to automatically verify your premium subscription status and unlock premium features without forcing you to manually log in again within the extension popup.
  • Host Permissions (*://*.exthub.store/*): Required to securely communicate with the ExtHub.store platform specifically to synchronize your account details, verify your Premium subscription, and manage trial status.

3. Data Storage, Transmission & Zero-Tracking

We absolutely DO NOT collect, transmit, store, sell, or share your browsing history, course data, or any personal information.All visual adjustments and preference processing occur entirely locally on your device. Your settings never leave your device, and we do not use any third-party tracking or analytics scripts within the extension.

4. Limited Use Disclosure

The Extension's use of any information received complies strictly with the Chrome Web Store User Data Policy, including the Limited Use requirements. We do not use your data for advertising, we do not sell your data, and we do not use your data for creditworthiness or lending purposes.

5. Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us at support@exthub.store.