Firefox is now the last major browser that still supports uBlock Origin
Chromium’s Manifest V3 transition leaves Firefox as the durable home for full uBlock Origin, whose request-level filtering, dynamic lists, and CNAME uncloaking go beyond merely hiding ads. That makes browser-engine plurality a security and user-control issue, not just a feature comparison.
The HN discussion notes that Brave and Vivaldi retain MV2 support for now, but their Chromium compatibility depends on APIs Google has deprecated. Reactions also debate extension permissions, Mozilla’s own trust model, and the cost of a browser monoculture.