Although Firefox apt is shown in Software Store for Z16.x , I thought only Flatpak was listed in Software Store for Z17.x, but possible to install via deb from Mozilla as shown here: Firefox is Finally Providing Deb Package for Debian and Ubuntu Users
Is FF apt is now back in the Z17.x Software Store as an apt?, please confirm, as many will be interested to learn.
EDIT: I think nemi108 has answered that question whilst I was typing.