Based on the description, it looks like it’s designed to be able to block or allow 3rd party stuff on webpages. For example, it looks like, if you wanted to, you could block Twitter embeds from loading in a given news article. I imagine it can also block hidden 3rd party stuff, too, the kind that you only notice if you look at the network tab in the browser’s console.
I used uBlock origin and have for years but I’ve never heard of uMatrix. I see from the description kind of what it does, but what’s the benefit here?
Based on the description, it looks like it’s designed to be able to block or allow 3rd party stuff on webpages. For example, it looks like, if you wanted to, you could block Twitter embeds from loading in a given news article. I imagine it can also block hidden 3rd party stuff, too, the kind that you only notice if you look at the network tab in the browser’s console.