https://chromewebstore.google.com/detail/vocaspot-cefr-vocabulary/ogpfelooklhlokeplobiofkhnhgpldoh?hl=en
VocaSpot - CEFR Vocabulary Highlighter - Chrome Web Store
Highlights words on news pages based on your CEFR level and shows context-aware definitions.
cefrvocabularyhighlighterchromeweb