In iOS you can add Firefox as a password manager auto fill option. Then when you tap in a password field, the relevant passwords should prompt to auto fill. I

In iOS you can add Firefox as a password manager auto fill option. Then when you tap in a password field, the relevant passwords should prompt to auto fill. I haven’t tested this with Firefox’s password manager, but I did test in firefox and Bitwarden is auto filling correctly, and in iOS settings I see Firefox is listed as a password manager. It’s settings->passwords->password options. I don’t think apps can automatically enable auto fill, you might have to manually enable this.