I immediately appreciated the new look of the redesigned FF3 GUI when I installed it on “Download Day“, and after a week or so of having it on my laptop, I decided to take the plunge and fully switch over to FF3 from my previous browser of choice, Camino. (It functioned incredibly fast on my old Powerbook in comparison, and simply became habit.)
Either way, I’ve enjoyed the transition for the most part. Since they’re based off of the same rendering engines, there’s not much to complain about, and when I find an extension or ten that I find useful, I’ll be able to take advantage of the switch more thoroughly.
I have come across two issues which seem to be plaguing a few users, and will describe and document my travels here incase someone else has the issue and stumbles across this article 
Issue 1: Random crashing at well-known sites (such as GoDaddy.com). I would crash everytime I had tried to get into the account panel. Turns out that Silverlight was the culprit, and installing the upgrade from v2 Beta 1 to v2 Beta 2 did the trick.
Issue 2: Since I move around to anywhere from 3-5 wireless spots on a weekly basis, some of which I administrate, I’ve been getting some frustrating issues with the self-signed certificates, or reused certificates that the routers re-use when sending them out to its users. The error typically at the top of this page is “Secure Connection Failed.” The best bet is to make a temporary or permanent (depending on your situation) exception to the check, and be on your merry way. My problems didn’t end there though, and it was saving a certificate it wasn’t showing in the list of certificates within the preferences page that I was supposed to be deleting, and restarting FF3 wasn’t doing anything for me.
Simply head on over to ~/Library/Firefox/Profiles and delete the cert8.db file, and restart FF3. Annoying, but its a large enough issue (plenty of people are whining about this) where I’m sure the Mozilla team is working on something, and we should see something in the next update or two (hopefully!)
