If you are in the EU, the newest beta of iOS 17.4 has the alternative default browser picker when you first open Safari.

Here’s what it looked like on my French iPhone:

@nileane @viticci

Has Firefox attempted a mobile browser?

I recall at one point, on government websites, ACA, Covid, they could not function properly on Mobile Safari and I ~had~ to switch to Chrome. It’s been a few years.

@Chancerubbage @nileane @viticci Not sure why Chrome would’ve worked any different, as until now, Chrome has had to use the same rendering engine on iOS as Safari. But yes, Mozilla have been working on a version of Gecko for iOS for the past year, in anticipation of Apple's recent announcement. https://www.theregister.com/2023/02/07/mozilla_google_apple_webkit/
Mozilla, like Google, is looking ahead to the end of Apple's WebKit rule

Work on a Gecko-based version of Firefox for iOS is underway, again

The Register