Focus4Life — Website Friction collects no data. It has no analytics, no account, and no server of its own. The list of sites to friction and the focus-session window are received only from your own Focus4Life desktop app over a local connection on your computer (127.0.0.1); nothing about the pages you visit is read, stored, or transmitted off your device. The extension uses declarativeNetRequest solely to redirect blocked pages to a page bundled inside the extension.