I got really surprised already at trying. Namely by a context option that is a great asset for ones that learn languages.
Kuudos to authors for that!

Don't think I could've learned the German language without this tool.

Please update the addon for Firefox to be the same as for the Chrome browser.

Kindly release a new update Extension for Firefox browser,
Or at least to be same as Chrome browser, the extension on Firefox is way behind Chrome browser's extension..
-Thanks

Aplicación excelente, didáctica y muy amigable con el usuario.

C'est parfait pour moi

Расширение отлично работает, быстро скачалось, пользуюсь в удовольствие!

Outstanding!