uMatrix and uBlock Origin are complementary. Specifically uBlock Origin has cosmetic filters which uMatrix doesn't have. Using both is quite handy in my experience.
Anything "Adblock" should be avoided. Borderline malware imo, and there is no reason to use them when you've got uBO/uMatrix.
Anything "Adblock" should be avoided. Borderline malware imo, and there is no reason to use them when you've got uBO/uMatrix.