This looks like one of the many grouping-addons that firefox has, just a better look. It doesn't seem to say anything at all about the actual features besides t

This looks like one of the many grouping-addons that firefox has, just a better look. It doesn't seem to say anything at all about the actual features besides those three animations? Or is my adblocker just removing something important? Anyway, as someone who has used all kind of flavors of grouping in firefox (and still is using it with tree style tabs now), I can say that grouping is nice, but on the long run not nice enough. It helps to organize your mess, but the lack of effortless integration into something outside your browser is a real problem for serious work. Maybe MacOS can offer some ways there, I remember in the past they had good options via applescript.