uBO Lite (uBOL) is a powerful yet efficient content blocker designed to work with the Manifest V3 (MV3) API. Unlike traditional blockers that rely on continuous background processes, uBOL operates purely declaratively. This means it offloads content filtering tasks to the browser itself, which handles CSS and JavaScript injections directly. As a result, uBOL uses minimal CPU and memory resources, making it a lightweight choice for blocking ads and trackers.
The service worker associated with uBOL activates only when you open its popup panel or access options, so it doesn’t run unnecessarily in the background. Out of the box, uBOL includes well-known filter lists such as uBlock Origin’s default sets, EasyList, EasyPrivacy, and Peter Lowe’s Ad and tracking server list. Users can easily customize their protection by enabling more filters through the options page, accessed via the cogs icon in the popup.
Overall, uBO Lite offers a seamless, efficient way to keep your browsing experience clean and fast without draining system resources.