Screen Time Alert Chrome Extension – Privacy Policy

Last Updated: December 2025

Overview

Screen Time Alert is a Chrome browser extension designed to help users monitor time spent on active browser tabs and optionally display visual on-screen alerts at user-defined intervals. When you set an alert from the menu, a robot will appear and warn you with a message based on the time interval that you had set. More smoke will appear as well. It is a fun app that is great for screen time monitoring. FREE FOREVER. All rights reserved www.thugon.com and Seng Thao.

This extension operates entirely within the user’s browser environment.

Data Collection

Screen Time does not collect, transmit, sell, or share any personal or sensitive user data.

• No personal information is collected
• No browsing history is transmitted off the device
• No analytics, tracking pixels, or third-party SDKs are used
• No data is sent to external servers

Local Data Storage

The extension stores minimal configuration data locally using Chrome’s built-in storage APIs.

This may include:

• User-selected time intervals
• Enabled or disabled state of alerts
• Tab-specific session timing counters

All stored data remains on the user’s device and is never transmitted externally.

How the Extension Works

1. The extension monitors the currently active browser tab.
2. A local timer tracks how long the tab remains active.
3. When a user-defined interval is reached, a visual alert appears on the webpage.
4. All processing occurs locally using Chrome extension APIs.
5. No monitoring occurs when the browser is closed.

Permissions Explanation

activeTab

Used to identify the currently active tab so alerts can appear on that tab only.

scripting

Used to inject visual alert elements into webpages at the appropriate time.

storage

Used to store user preferences locally on the device.

host_permissions (<all_urls>)

Allows alerts to appear on any website the user visits.

No Remote Code Execution

Screen Time does not load, execute, or update code from remote servers. All functionality is packaged within the extension.

Third-Party Access

No third parties receive data or provide services related to this extension.

Children’s Privacy

This extension does not knowingly collect data from children and does not target minors.

User Control

Users may enable, disable, or remove the extension at any time. Removing the extension deletes all locally stored data.

Security

Because no data leaves the browser, there is no external data transmission or storage risk.

Disclaimer

This software is provided AS IS and WHERE IS, without warranties of any kind. Use of this extension is entirely at the user’s own risk.

Changes to This Policy

This Privacy Policy may be updated to reflect feature changes or Chrome Web Store policy updates.

Contact

Website: https://www.thugon.com

Known Errors

If you see this error in the dev mode section: Unchecked runtime.lastError: No tab with id: 2022025007. Context Unknown Stack Trace :0 (anonymous function) . This occurs because the extension doesn't know what to do with those chrome:// tabs that doesn't have a url. The error is Chrome's way of just expressing confusion. In the future, I will add codes to kill and/or ignore those tabs. Some like if (chrome.runtime.lastError) { // tab was gone — expected in extension lifecycle }. You can simply, ignore the error. Nothing is saved, logged or etc. Chrome is just annoyed. No crash, error out or etc. - Seng Thao

Compliance Statement

This extension complies with the Chrome Web Store Developer Program Policies, User Data Policy, and Limited Use Requirements.