*uMatrix is unmaintained, and uBlock Origin can do fine-grained control – it just requires the “advanced user” setting for some reason, even if you expand the panels all the way. https://github.com/gorhill/ublock/wiki/quick-guide:-popup-us... (see “I am an advanced user!” expanding section at the bottom)
And I can actually build and package it from source in about 2 hours, unlike the other monstrosity, which surely must lower the barrier to contribution. Almost as much as Bugzilla raises it, I guess :-(
