Firefox on desktop and Mobile. To keep browser monopoly away. All settings set to max strictness except no DNS, because I have a VPN. Firefox works on 99.9% of sites. You can use a script called Arkenfox, to harden FF even more, almost to Librewolf, but with the advantage of updates coming directly from mozilla. I love the sync function across FF, so that's why I have it on my mobile as well, it's seemless.

Firefox (well, librewolf, but forks are a matter of personal preference).

Chrome (Ungoogled chromium) is used as a fallback for the occasional site that doesn't work with my restrictive FF configuration.

Both have uBlock, though they're configured differently to suit their individual purposes.

Brave

Firefox

Firefox on mobile, desktop and iPad.

Zen Browser on pc, and Fulguris on android.

librewolf on my laptop, firefox with ublock origin at work and on mobile

Desktop, Librewolf

Mobile Brave, Mull

i use hardened firefox but i also use vivaldi when i need to use chromium for whatever reason

waterfox

On mobile the only choice is Mull. And on desktop even you could use Arkenfox, but recommended to you to use the Mullvad brower

Tor Browser

Falkon on my Surface Go and Firefox on my Desktop.

https://youtu.be/2ssECcbhjJc

A customized copy of ungoogled chromium

Since you're using Edge, I'll assume you're running Windows. In that case, I'd recommend either Librewolf or ungoogled-chromium.

I, myself, use Mullvad Browser and Links2, but they're not quite as good for new users.

Since I have not seen it yet in the comments, I use Floorp, a Firefox fork with some nice UI improvements (and apparently some performance improvements, but both are very fast for me).

PC - Firefox with ublock, multi container extension Android - Mull with ublock extension, i delete data on exit

Tor Browser on both Linux/Gnome and Android. I believe I get not only the benefits of ad-blocking and anti-tracking measures but also IP-obfuscation through the Tor network. Sure, there are sites that won't serve content to the Tor network, but screw them!

LibreWolf on desktop—fennec on mobile (tho I should consider Mull, my history is already in Fennec). Back desktop is Brave—with backup mobile being Mulch + Fx Android Beta (to handle DRM). In the terminal, w3m picking up a new possible maintainer means it will stay my favorite.

I want to follow Ladybird, but man is that hype way overblown relative to where the project actually is & you should not trust leadership that locks communications to US-based, proprietary services (Discord + Microsoft GitHub).

Librewolf on my personal laptop.

On Mobile I use Firefox Nightly but it is a pain. It crashes all the god damn time. I don't know how y'all do it, Mull is the same thing because of the upstream. I sometimes consider using Vanadium but I ain't pissed enough yet, I think.

On Desktop, Librewolf for mostly everything that I can manage work with it, what doesn't I open whatever other browser that's available.

Floorp

firefox but hardened. dont want to use any chromiumed browser bc of the monopoly, and librewolf is just a fork of firefox so too little difference to switch

I'm using Brave cause I love and need Chromium. Firefox and Vivaldi are great options too.

You could use a PiHole or nextdns.io too as a DNS blocker against ads and trackers.

I've been using Kiwi for the last few years, as at the time Firefox didn't do extensions on mobile. It's Chromium based, and I've had no issues using it anywhere.