Blockberry - Focus Booster is a simple, privacy-focused, and open-source Chrome extension designed to enhance your productivity by blocking websites of your choice. This extension prioritizes user privacy by not tracking or collecting any data. It offers features like wildcard domain blocking, aiding in maintaining focus. Additionally, the easy switch mode allows you to quickly block tabs and revert the changes effortlessly. The extension also provides an auto adaptive light/dark mode to suit your preferences seamlessly.

Blockberry - Focus Booster is a valuable tool for individuals seeking to minimize distractions and boost productivity without compromising their privacy. With its current features and promise of future enhancements like whitelist mode and time-based auto focus, this extension shows great potential for aiding users in maintaining focus amidst digital distractions.