WordExplorer от HA5AST

Recommended for non native English readers. This addon uses the Free Dictionary API. If you point somewhere on a word on a website with mouse pointer or previously select a piece of text ( mostly phrasal verbs and collocations) and push Alt-w key combination the addon gets and displays the selected/pointed word from dictionary. You able to see word classes, explanations, synonyms, antonyms. Use back arrow or your special mouse button to back to the previous page.