A while back I discussed debugging closures and, I must admit, I figured Google Chrome would have fixed the issue by now, what with their fast release cycles and all. Nope. Enter Firefox 4.0 beta: yes, it is fixed (and not just their really awful bug that made using Firefox a burden when debugging -- they fixed all instances). Sadly, FF4 is so broken as far as debugging is concerned that it is not much consolation at the moment. But that will change eventually, and definitely (I assume) by the day it ships in March (my guess). So gantlet thrown Google. Sheesh. As a big consumer of your own tools, you would think this wouldn't even be an issue.
When FF4 ships, I'll update with a Part 3. Unless there is a more interesting development before then...