People ragging on the only viable browser solution we have... Firefox is rock solid, fast, tweakable, and keeps me as safe as any browser and my configs/habits can. I don't care if management eats babies.
I use it on debian with celenity phoenix and a few about:config tweaks, also tweak'd the theme a bit. Extensions: ublock origin, sponsorblock, localcdn, consent-o-matic, containers, keepassxc-browser, and sometimes jshelter.
web browsing: solved
Been using it since it was Netscape Navigator. It's the only solution for me, that has stuck. It's not like I haven't tried anything else like Opera, Waterfox, Vivaldi and a few others. I have never installed Chrome though... Firefox is the only one I feel safe with... A few addons, and a few tweaks, and like you, I'm good to go...
I can see that people really have a hard time when someone speaks figuratively...