Function instructions_for 

pub fn instructions_for(store: Store, suffix: &str, cert_path: &Path) -> String

Printed, never executed. The three differ in more than spelling: the Windows one needs no elevation and writes to this account only, the macOS one prompts for a password and writes to the login keychain, and on Linux the location depends on the distribution while Firefox keeps its own store regardless. Guessing wrong while running as somebody’s shell is not a thing to do quietly.