Best Manifest V3 Adblocker for Chrome OS
Patrick Bushe · May 1, 2026
Chrome has phased out Manifest V2 extensions, which is why the original uBlock Origin no longer runs there, Chromebooks included. Ultimate Adblocker is built for Manifest V3 from the start. Its filter rules, from EasyList, EasyPrivacy and other community lists, are handed to Chrome's built-in declarativeNetRequest engine, so Chrome does the matching itself instead of running extension code on every request. That keeps it light on low-powered Chromebooks, and it works in Chrome on ChromeOS the same way it does on Windows and Mac.
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