Waterfox is based on esr, so quite outdated. Just use librewolf and some css. You have firefox-one that will make it look pretty and similar to zen. Zen is no good if you care about privacy.

librewolf

well yeah I guess some decide to make revenue with this “shady” practices like brave does and others just take 400 millions from google.

I will take a look, it looks interesting. Thank you very much

Its is pretty easy to get rid of all the rbave crap. You just need a policy file:

# cat /etc/brave/policies/managed/brave_policies.json
{
    "BraveRewardsDisabled": true,
    "BraveWalletDisabled": true,
    "BraveVPNDisabled": 1,
    "BraveAIChatEnabled": true,
    "NewTabPageLocation": "https://search.brave.com/",
    "TorDisabled": false,
    "PasswordManagerEnabled": false,
    "DnsOverHttpsMode": "automatic"
}

I would suggest Debian. Rock solid and it usually has all you need. If you need newer software on it you can allways use backports and there is also a really cool project called distroboc that will let you run pretty much any application in a container.

I gave up on firefox 1 year ago and went to the dark side with Brave. I am really happy with it even tho part of it is closed source.