I wouldn’t consider using IronFox since, from what I hear, Firefox’s security is worst on Android. Even Linux has better sandboxing than it. While I’m sure IronFox is better, I’m not sure how much better it can be.
As for Librewolf, I’m considering it. I’ve actually had it installed for maybe two years at this point but never really used it. It’s nice that it removes the annoying popups from Firefox and lacks the crypto of Brave. And it should be more secure due to the hardening and disabling of features. And while the security and sandboxing isn’t as strong as it is on Windows/MacOS or Chromium’s, at least it should be better than standard Firefox.





You can tinker for the most part, it’s just done differently. In the Universal Blue world, that would be creating your own OCI container using their image template or blue build.
The nice thing is that it makes the OS much more reproducible than imperative commands and scripts.