Rated 5 out of 5 stars

Superb!!!!
It's a pity that it is not available for Mozilla Thunderbird as well.

Rated 5 out of 5 stars

Really great!

Rated 5 out of 5 stars

Really useful.

Awesome Rated 5 out of 5 stars

Very useful dictionary, with lots of examples, details and also images.

Rated 3 out of 5 stars

This add-on is listed as being for Thunderbird, when in fact it's simply an additional search engine for Firefox. It should be re-categorized.