Update Beacon - Web Monitor by Hebeerryk
Update Beacon is an advanced monitoring tool that watches web page updates like a "Lighthouse" (Beacon) and reliably notifies you when changes occur. Whether it's breaking news, stock prices, product inventory, price drops, ticket availa
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About this extension
【Main Features & Characteristics】
【How It Works】
【Privacy Policy】
This extension puts user privacy first. We do not collect any personal information. All data remains strictly on your local device.
Intuitive Monitoring Setup
Start monitoring just by clicking the icon on any page. Easily manage all your active monitors from a clean, central dashboard.
Flexible Schedule Management
Choose from multiple check intervals: 5m, 10m, 30m, 1h, 3h, 6h, 12h, or 24h. Customize frequency based on the importance of each site.
Smart Fingerprint Engine
Automatically detects and ignores dynamic noise like "X minutes ago" or "Users currently viewing." Notifications are only triggered when the actual, meaningful content of the page changes.
Visual Diff (Comparison) Preview
When a change is detected, view "Before" and "After" versions side-by-side. Changed sections are vibrantly highlighted, making it clear exactly what was updated.
Refined Icon UI
A streamlined interface that organizes key actions (Split/Single view toggle, Screenshots) into smart icons with helpful tooltips.
Percentage-Based Scroll Sync
Our latest algorithm ensures that scrolling remains synchronized even if the page content length has changed. Compare long articles or landing pages effortlessly without losing your place.
Full-Page Screenshot Capture
Save the comparison view as a high-quality JPEG screenshot with a single click. Supports full-page capture, perfect for record-keeping or sharing evidence of changes.
Privacy-First Local Design
All monitoring settings, URLs, and page data are stored exclusively in your browser's local storage. No data is sent to external servers or collected by us, ensuring total privacy for sensitive pages.
【How It Works】
Register: Open the page you want to monitor, click the extension icon, and select "Add Page."
Configure: Confirm the page name, select your preferred check interval, and click "Start."
Wait: The extension checks the page in the background. Monitoring continues as long as your browser is open.
Notify: Receive a desktop notification and see the badge count on the icon when a change is found.
Confirm: Click "Confirm Update" to open the Diff Preview. The synchronized scrolling makes it easy to spot changes in any page structure.
Save: Use the "Save Screenshot" button if you need to keep a permanent record of the update.
【Privacy Policy】
This extension puts user privacy first. We do not collect any personal information. All data remains strictly on your local device.
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Permissions and data
Required permissions:
- Display notifications to you
- Access browser tabs
- Access browser activity during navigation
- Access your data for all websites
Optional permissions:
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Version
- 1.3.0
- Size
- 45.76 KB
- Last updated
- 8 days ago (Feb 7, 2026)
- Related Categories
- License
- Mozilla Public License 2.0
- Version History
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