Actually translates the highlighted text, unlike all the trash translator addons above it in the search list. Switching between google and bing translate on the fly comes in handy too.

Самый лучший перевод.

Prob the best translator I have ever had!

пользуюсь недавно. пока очень нравится, удобный!

easy to use and always at hand

This is one of the best translator extensions really highly recommended, 5 stars

the best translator of Firefox!!

A useful tool, it helped me translate everything into several languages perfectly. I like the way it translates full web pages or just specific phrases. It is the best translator I have used. Thank you, developers!

Excellent Addons without any doubt
I have one small suggestion. It is regarding resize of the popup if it is possible to be done bu end user. I went via help but no way to change the size.
Thank you

Очень удобно.