Page Visibility API Blocker

Page Visibility API Blocker prevents websites from detecting when your tab is hidden or minimized. When enabled, websites will always believe they are visible, preventing them from pausing videos, stopping animations, or reducing functionality when you switch tabs.

FEATURES:
• Toggle blocking on/off with a single click
• No data collection - fully private
• Works on all websites
• Local storage only
• Open source code

PRIVACY:
This extension collects no data. All functionality operates locally in your browser. No information is transmitted, stored externally, or shared with any third parties.

USE CASES:
• Keep videos playing when switching tabs
• Prevent web applications from pausing or throttling
• Test website behavior with constant visibility

OPEN SOURCE:
Full source code available at: https://github.com/Transwarp8/PageVisibilityBlocker

Simply click the extension icon to toggle blocking on or off. Reload active pages for changes to take effect.