I use adblock (uBlock origin) because the internet is nigh unusable otherwise. It’s incredibly risky (even irresponsible) to not have adblock turned on given the danger of malware, or malware in the guise of advertisements. However, I’d whitelist sites that are decent about it–though in practice, I find it risky to temporarily disable my adblock just to test things, much less to whitelist them.
Most of all, there are other, better, ways to support content creators in the internet.
I am currently using LibreWolf (I am assuming that’s what you meant by librefox), and aside from getting used to a non-chromium-based browser (which is almost all of them nowadays), it’s really fine.
Besides, why wait to try it out? Get used to it before you have to.