You'll probably think the reason is stupid, but I'm not really down to use Firefox mainly because I think their interface is terrible. There's also the fact that most of the money Mozilla makes comes from Google, and I don't really feel good using a product from a company that's basically propped up by Google (yeah, I'm being a hypocrite, I use K9 mail). As for Fennec, I've heard of it, but I never really looked into it; can you tell me why it's a good option?
And sorry man, I'm not gonna bother checking out the link you sent. I understand and even admire you not using Brave for ethical and moral reasons, but in my opinion, the only people who are 100% ethical all the time are trust fund babies or fools (I'm not a trust fund baby and I'm not looking to be a fool).
And my bad if any of my comments came off as rude or like I was trying to offend anyone, that wasn't my intention.