It used to be amazing in the past!
But now it's slowing down the browser TERRIBLY !!!!
And it still has lots of false positives which leads to block a lot of websites that has nothing wrong with them!
And the websites that actually has problems it doesn't block them all... So after years of using it I'm finally removing it.
Waiting for "Windows Defender Web Protection" for Firefox. Just like when I replaced Norton Security with Windows Defender last year.