Please add the functionality:
1) Make a choice of translator: Google or Yandex.
2) Translate all the old pages in the same tab, not in a new one. This is done by the plugin https://addons.mozilla.org/ru/firefox/addon/traduzir-paginas-web/

Better than the official app, but need some additional settings if I want to translate from English.

A melhor que já usei no Firefox!!

very helpful! Thanks a lot!

This one is the best of the best addons for translating. But i have to figure this out first. in first glimps it was not worthy of time.

its good but giving error that service limit most of time

insane (good)

Display translation panel is just the best.