I really like this extension, but can you restrict it to only a small subset of words that grows over time? If I see lots of different words, I'll forget them, but if I see the same words over time, I'll remember them.
And thanks for the feedback! We are building 2 things to address this:
1. A learning tree to progressively learn more complex words or verb tenses.
2. Word density options, so you can decide how much brain power you want to put into learning the language during each day.
EDIT: So sorry – I was wrong about the word – it's being pronounced correctly!