If you're a really "mainstream" user not really caring about privacy and such use Floorp or Zen.

If you're caring about privacy at least a bit and want to get a pleasing experience, use Waterfox.

If you're a bit more serious about privacy use Librewolf (mainly for privacy itself) or Mullgad Browser (for anonymity and fingerprinting). (These browsers are totally usable if you care about privacy and can be 100% used as daily drivers)

Lastly, you shouldn't use Tor Browser in replacement of the traditional Firefox as it's firstly meant to use it with the Tor network and to only browse some sites that are not tracking every move. (The same goes a bit with Mullvad (excepting the fact that Mullvad is not meant to browser the Tor network), it's an anonymity browser in the sense that you shouldn't use it to connect to the GAFAM fucking services that will suck 100% your datas, in this case of high privacy without really needing pure anti-fingerprinting and anonymity you should use Librewolf)

That's it hope you will succeed in your journey! :)

Last advice : You can also harden the default Firefox with some user.js (like the arkenfox or betterfox one) but as today it's really no more useful in my opinion as forks are doing the same things without the configuration hassle of setting up your new browser. Have a nice day

Don't bother using Tor Browser or Librewolf as your main. They're fine as side browsers for dedicated use cases but as daily drivers, they're the direct opposite of fine.

Can't speak on Floorp or Zen but I do enjoy Waterfox for what it is. Not as strong on its privacy protections as LibreWolf is but way more usable.

I use Librewolf as my daily driver for most things, then Mulvad when I don't want any fingerprinting.

Mulvad is highly underated IMO.

Zen will give you the most functionality. Librewolf will give you the most privacy and security.

Librewolf.

Zen browser was my favourite but this put me off:

https://sizeof.cat/post/web-browser-telemetry-2025-edition/

• Zen is a little too fancy for me and it may contain telemetry.
• Haven't tried floorp, but seems promising (may try it later).
• Tor browser if you want at most privacy with actual IP masking.
• Librewolf is my favourite, it's fast and simple. Yet with good privacy features turned on by default.

librewolf as daily driver, mullvad for looking shit up on ecommerce sites with new ID each time

tor if you are feeling paranoid that day.

ungoogled chrome when none of the above work.

Whatever you end up choosing, make sure it gets regular updates. Not being up-to-date with security updates/patches negates any security/privacy you get.

What would be a good option for the iPhone environment (changing phones not an option)? There are four different Tor browser apps from different developers. Using DuckDuckGo right now, but any other better options?

I was using (and really liked) Librewolf until I heard that they were having trouble keeping up with Firefox updates. Now I'm using the Phonenix configurations for Firefox and keeping the FF updates separate from the privacy configuration settings. Avoiding forks lets you get the best of both worlds.

https://github.com/celenityy/Phoenix https://codeberg.org/celenity/Phoenix/wiki/Comparison

I'm using Waterfox. Been great so far.

Mullvad browser is also another great Privacy web browser but probably be more suited if you have a active subscription to mullvad VPN since it's point is to blend in with other mullvad VPN users.

My setup is librewolf as main, ungoogled chromium as backup for problematic sites.

I've been using Zen and Librewolf, I recommend both of them but Librewolf will give you the privacy out of the box. A friend of mine uses Floorp and he seems happy with it.

In terms of use, librewolf feels exactly the same as firefox. I chose librewolf but zen is my 2nd pick try them both.

Anyone know of a desktop equivalent to IronFox?

waterfox doesnt get regular updates, look at their github, theres one guy. (not specifically adressed to you OP)

i use librewolf and just turned some options on again so it doest delete everything when i shut it down.

I use librewolf and arkenfox

I've been using Floorp for a few months and it's been as easy as possible to replace Firefox.

I use FireDragon. Not on your list, but it's yet another Firefox fork to look at.