For everything else, Firefox should be the default [3][4].
It'd be great if Firefox bundles a content blocker like uBlockOrigin [5] in its distributions and introduces First-Party Isolation [6]. DoH is a welcome addition, esp since it can be used with AdGuard DNS [7] for another layer of content blocking. Firefox Private Network [8] is yet another step in the right direction, as are the anti-fingerprinting techniques [9] it has been upstreaming from the Tor Browser. With WASM around the corner, it'd be wonderful when native apps could be run from within a privacy-friendly sandbox like Firefox. Imagine using WhatsApp/Instagram on Android within Firefox with content blockers...
Next up: Strike partnerships with Android OEMs and bundle the browser as default.
[0] https://news.ycombinator.com/item?id=18052923
[1] https://news.ycombinator.com/item?id=19263649
[2] https://news.ycombinator.com/item?id=20767891
[3] https://news.ycombinator.com/item?id=20052623
[4] https://news.ycombinator.com/item?id=17361168
[5] https://news.ycombinator.com/item?id=20874006
[6] https://news.ycombinator.com/item?id=20783339
[7] https://news.ycombinator.com/item?id=18788410