This is a somewhat advanced add-on for a beginner, but actually a great alternative for no-script. The gui is especially helpful to any new users.

I would recommend using this right along side uBlock. As a pair they block most of the junk on the web. These add-ons also give great info on exactly what is trying to connect to you.

~ The content of the "Assets" tab is duplicates of what uBlock uses as filters. When using both uBlock and uMatrix there's no point to use the same filters twice. It would be nice if the Assets were more filled with rulesets that can be used in uMatrix specifically.