Programa Para Ver Memoria Ram

Linux-lite, huh?
I was getting ready to replace my old Lubuntu on an even older ASUS-eee 9 (2GB) with some newer minimal OS.
After looking at a dozen or so of them, I finally decided on Linux-Lite, then found out it came only with Chomium!
The comments here will be useful as I wish to use Firefox instead of Chrome.
FF is already the default browser on my laptop and desktop (each has both Win11 and Ubuntu 22.04), and on my Raspberries.
Thanks, everyone! .