Darkness was a browser extension that provided dark themes for many popular websites, such as Google, Facebook, Gmail and YouTube.
As of July 2025, the Darkness browser extension is permanently non-functional due to Google Chrome's deprecation of Manifest V2 extensions. This affects both:
- ❌ Self-hosted version - Cannot be loaded in modern Chrome browsers
- ❌ Chrome Web Store version - Cannot be installed or used
Google has deprecated Manifest V2 extensions as part of their security and performance improvements:
- January 2022: Chrome Web Store stopped accepting new Manifest V2 extensions
- June 2024: Warning banners started appearing for Manifest V2 extensions
- March 2025: Manifest V2 extensions disabled by default
- June 2025: Complete removal of Manifest V2 support in Chrome 139+
For more technical details about the Manifest V2 deprecation:
- Manifest V2 Phase-out Begins - Official Chrome team announcement
- Manifest V2 Deprecation Timeline - Complete timeline and migration guide
- Manifest V2 Documentation - Technical reference
Thank you to all of our users over the years. Your feedback and enthusiasm made this project meaningful. We hope Darkness served you well in making the web a little easier on your eyes.