Umm It's mostly a glitch with Mozilla Firefox - Trying to get many add on's / extensions to run on an interface in the browser - can be a real bastard.

There are no instructions on how to get it into the menu and or to operate it either.

Once many years and computers back, some new browser came out, and it remembered my name, my account number and the password in the URL, in it's history settings - AND ever since them I have been viciously opposed to "the LOW IQ programmers" keeping everything you do AND don't want in the browsers memory / history.

The app needs an interface that can be negaged, instead of Firefoxes idiot inteface.

Too basic and the UX is terrible. But it does what it says.

does not work on mobile

AFTER UPDATES THE BLACKLIST IS GONE !
IF YOU FIX IT IT'S A 5 STAR PERFECT .

Hey, I'm thankfull for your efforts but it doesn't seem to work on Firefox Quantum 57.0 (64 bits)

Nothing happens while pressing the button "Clear Blacklist", "Remove Domain", "Add Domain" and "Import".

Tried to clean history and reboot. No luck.