Definitely!
Here's a more compact version of the "way of the browsing" (from my pov):
-------------------------------------
TorBB: anonymity (text/images websites) / no config at all. Firejail can't
hurt though.
-
(secondary) Hardened browser: privacy and security (anything else that can
work without JS at all) / NoScript+UO+Firejail+that JS file+config+extra
addons? Some research is needed (filtering the "must have" from the harmless)
-
(extra) nearly normal browser: less privacy, but secure enough (accounts,
banking/administrative stuff, online shopping) / NoScript (but with some JS
allowed, if not all if website is unreachable)+UO+Firejail
-------------------------------------
Now it's up to me to harden n°2 yet keep it light,
and get better browsing habits.
Right now I realize I'd spend quite some time on n°3, because I often need
just enough JS.
Mostly mine is a mix between n°2 and 3.
So why not reunite 2 and 3?
The bottom line would be to just Firejail it and make the config/addons as
light as possible?
Only for videos, online shopping and accounts.