hellovetica
if only we were pilots
mozilla's extension building tutorial is really well written. »
page saver for ff 1.5 looks very very cool. like paparazzi for osx only works on windows and is built right into the browser. does visible-portion captures too. »
tamperdata look like a nice extension for testing xss holes »
ietab is utter utter genius. it allows you to use IE in certain tabs within firefox, and easily switch between the two. TOO COOL. »
yoz linked to a good resource for anyone thinking of developing moz extensions - worth checking out. »