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.
I’ve been using your product for a few days and it’s so cool. Just wanted to report two bugs quickly. It seems like the popover doesn’t appear consistently on HN, and לומר is not being pronounced correctly.
EDIT: So sorry – I was wrong about the word – it's being pronounced correctly!