Its only killer feature to me is that websites are designed and tested with a Chromium-first attitude. As a regular FF user I might stumble upon a website that’s quite buggy or straight up doesn’t work, which forces me to use Chrome for that specific website. Other than that I don’t really feel like there’s anything, and Edge is currently a better Chrome than Chrome anyway.
EDIT: and for the record, I’m still upset Microsoft didn’t choose FF and willingly increased Google’s grasp
EDIT: and for the record, I’m still upset Microsoft didn’t choose FF and willingly increased Google’s grasp