works after playing 1-2 songs on youtube... Devs, please keep the manual short, particularly the part how to activate/connect (!) the scrobbler-addon with your lst.fm account!..

Works well but it really needs a manual scrobble mode where you have to click a button in order to scrob

Does work with the latest edition of Firefox. However, beware that when adding to your scrobbles it DOES NOT scrobble which album your are scrobbling from. Only artist and track. Sadly, editing scrobbles is only for Pro users on Last.fm. Otherwise the plugin works as intended.