From https://www.gov.br/mre/pt-br/consulado-sao-francisco/vistos updated on 28/06/2023 17h08.
We are not accepting visitor visa applications for citizens of the United States, Australia, Canada and Japan at this time. If you are a passport holder of one of the countries mentioned above, please do not mail your visa request until the new guidelines for this visa category are published on our website.