I saw that an integrated site translator appeared in Firefox. I wanted to say that I am currently using the extension:TWP - Translate Web PagesHome pagehttps://github.com/FilipePS/Traduzir-paginas-web
This translator works very quickly and translates the website page very accurately. It is perfect, it works better than the Google Chrome translator, it is absolutely functional.
Maybe it makes sense to take it as a basis?