>Not anymore, firefox has it by default now, just gotta turn a setting on.

I don't use Firefox as my main browser. I use Yandex. I do sometimes wonder if HTTPS everywhere is becoming a bit redundant these days anyway. Most sites seem to have moved to HTTPS these days.

  >Sadly this [uMatrix] is dead

Yes, that's a shame. It still works though. Hopefully whoever takes on the task of keeping it alive via a fork will make it a bit more mobile friendly. [The same could be said about uBlock Origin]