uBO Lite: MV3-based content blocker extension
Manifest V3 content blocker using declarative rules without persistent background processes.
Learn more about uBO Lite
uBO Lite is a content blocking browser extension designed for the Manifest V3 extension platform. It operates entirely through declarative rules, allowing the browser to handle CSS and JavaScript injection for content filtering without maintaining persistent background processes. The extension uses a service worker architecture that only activates during user interactions with the popup or options pages. It supports multiple filter lists including uBlock Origin's built-in filters, EasyList, EasyPrivacy, and Peter Lowe's server lists, with additional rulesets available through configuration.
Declarative Operation
Functions entirely through declarative rules without requiring permanent background processes. The browser handles content filtering directly, reducing resource consumption.
Service Worker Architecture
Uses MV3 service workers that remain inactive during normal browsing. CPU and memory usage occurs only during user interactions with the extension interface.
Multiple Filter Support
Includes default filter lists from uBlock Origin, EasyList, and EasyPrivacy. Additional rulesets can be enabled through the options interface for expanded blocking coverage.
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