You can use FFUpdater to install Firefox.If I were you, I would install Mull instead. And if you need another browser, Fennec, or Chromium-based browser - Cromite from Obtainium.
I'd go for Linux Mint/Fedora Linux.Another thing, I would've play with it first on a VM, like VirtualBox.I wouldn't immediately wipe Windows if I were you. I'd do dualboot with Windows.Then, when you're ready, stay with dualboot system or go full neckbeard /j
Snaps, I think I'll pass.Even without them, I don't have time to uninstall/remove everything I don't need.DIY distros suit my needs more, but thanks anyway.