Firefox with add-ons. Especially, but not only, Ublock Origin.
IMO any of the forks are inherently weaker than the main and there’s nothing stopping you from making Firefox work exactly like whichever flavor of fork you prefer, but with security updates the day they come out.
I love it in theory… but it just broke so many websites I needed to use. And not always in obvious ways.
Then just put those sites on your trust list?
You can go through all the sites the initial HTTP request calls out to and decide which ones get a pass. This is how I ensure sites like gstatic, googletagmanager, etc. don’t collect data even though the rest of the site works.
If that’s too much, just open the flood gates for that site and trust everything there. At least it isn’t just sending all your data out by DEFAULT.
Add-ons are a pretty huge security risk, though. Someone was just posting an article about how tempting it is to sell out with your extension, and how many offers you actually get.
And I’ve already been burned once, and it’s not pretty. Also nothing you can do against this.
The best solution is actually not Firefox, but Mullvad. No need for extensions, based on Tor Browser and can be bundled with a VPN that’s full of other people using the same browser - so you have exactly the same fingerprint, and they can’t tell you apart. Not by extensions, not by IP.
Based on his history it seems unlikely that gorhill, the creator of uBlock Origin would sell out.
And if something did change, there would be enough news about it to notify you. (Like the extension Avast bought a while ago)