UBlock

uBlock/README.md at master · gorhill/uBlock · GitHub.

I was pointed to this blocker—it’s not an ad blocker as such; it’s far far more interesting than that. Thus:

Ads, “unintrusive” or not, are just the visible portions of privacy-invading apparatus entering your browser when you visit most sites nowadays. **uBlock₀’s main goal is to help users neutralize such privacy-invading apparatus** — in a way that welcomes those users who don’t wish to use more technical, involved means (such as [µMatrix](https://github.com/gorhill/uMatrix)).

I haven’t tried it out yet. But I’m looking forward to doing so.