I have using Merriam-Webster's Learner's Dictionary by Victor for a few years now, and it has always worked as intended. Kudos for the developer.

This is incredible. I just wish there's a dark mode.

Most through dictionary ad-on

A great plugin which helps to understand the whole text, in spite of not knowing certain words.

It would be even better, if selections of more than a word didn't trigger the search the dictionary. Each time I select more than a word, it opens the window with "No results found (or invalid API key)" error and interferes me to select something else.

The most useful add-on for learning English.

Very helpful!

This add-on works quite well. Having word definitions as close as a right mouse click is important to the point of being essential; necessary. Thank you, and a great job and big ups to Victor for creating this add-on! 5/5

far better than any app i have ever seen !!! thank you so much

One of the few dictionary extensions that works fast and efficiently anywhere.