Firefox 3.0.3 is Out
There was a minor bug in the saved passwords code that caused some users not to be able to retrieve them, and that caused the developers to release 3.0.3. If I were impacted, I'd have wanted a fix, but as it was, I wasn't and things were fine.
As an aside, I've gone back to using the straight Firefox as the guy building optimized versions for the different processors is at 3.0.1 and if he catches up I may try to compare the two, but I have a feeling that it's like the MacVim tests I've done - on my machine the difference might very well be next to zero.