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.