For what it's worth, rudimentary (but persistent) css-based filters with a nifty element picker was implemented two weeks ago: https://github.com/gorhill/uBloc

For what it's worth, rudimentary (but persistent) css-based filters with a nifty element picker was implemented two weeks ago: https://github.com/gorhill/uBlock/commit/0b0294af4f https://github.com/gorhill/uBlock/commit/0b0294af4f It's great, and it still even works permissionless!