Great, simpledictionary (though would really love more languages added, like Arabic). Besides the language limitations, my only quibble is one that has been mentioned: popups shouldn't occur in edit fields. Double clicking on a word to retype it brings up the popup and obscures the text.

this is a time saver for me, makes learning a lot faster and encouraged.

works great

It used to be perfect, one day the dictionary stopped working and says no definition found.

Very friendly

Muy buena

Works really well, but I have a few questions: Is this considered as free and open-sourced, and does it respect my privacy, in essence, does it record and view each website I visit for tracking?

Continuously get the "no definition found", tried turning off all my other extensions but that wasn't it, seems to be a problem wit the extension itself? Reinstalling did not work.

Mostly works but there are problems with it that make it just barely okay. First, double clicking a word in an edit field brings up the definition. That shouldn't happen or there should be an option to disable it. If I double click a word in a text area, I don't want its definition, I want to do something with it, maybe style it or replace it with something else, but this extension often makes that difficult. Then the popup. It's sometimes slow but worse is that if the text I double click is on the right side of the screen, the popup bubble doesn't change direction and it partially appears outside the screen.