Some suggestions:

1. There should be a shortcut (like Alt+Shift+D) to open the extension popup in the toolbar because some text can be unselectable.

2. There should be a tab at the top of the extension that has "Recent Words" and "Most Searched" word or something like that. Even having a "popular words of the week" would be useful (though a seldom needed thing).

A good and equally strong alternative of "double click popup dictionary feature on chrome". Google chrome is infested with advertisements, plus google chrome steals data like no other.

I read a blog about the Definer's that they are waiting for 500+ subscribers to get a recommended tag. I feel Definer deserve this.

I rarely come to review, but this developer/s efforts are worth praise.

Great app with lots of potential. Will use everyday at work. So far, I'm dreming of having a quick ProZ terminology search available, as well as RAE (Spanish) and Merriam-Webster sources. Thanks for your efforts, devs!

It is an awesome addon! It would be better if it can add Bing Dict (https://cn.bing.com/dict/) for English<->Chinese lookups.

Snappy, customizable, multi language support and customizable hotkeys? This cant be real

I never rate extensions but this one truly deserves praise. In my opinion, this is one of the most well made extensions available for Firefox.

The UI is brilliantly designed, fits a lot of features in a very compact and accessible layout, unparalleled when it comes to dictionary extensions.

The functionality is as promised in the description AND MORE, you get access to Wikipedia, search results, all at the right place at the right time depending on the context and the selection. It is unusually configurable for an extension that performs such a simple task like looking up words - you can edit existing themes, create new themes, add your own css, change sources, change when the extension is triggered - way more than I expected.

I use this extension all the time and not once have I been disappointed.

Great job, dev!

Looks slick; works like a charm. Count me in!