PokeWordz：Save unknown words to list for futures self study...
PokeWordz – is come to help you catch unknown words on pages while internet browsing. It helps you to do not forget them and to do not change you focus from topic of your current browsing.
PokeWordz Account required: https://pokewordz.com#create-account
Easy to user:
1. Login into account
2. Select unknown word on page
3. Add new word via context menu
4. View it added in add-on popup window