Well I was excited to kick the wheels on the newly released Mozilla Firefox 3.6 (here). So I downloaded the new installer and ran on my work PC. Everything went smoothly until I got to the importer, then Firefox become completely non-responsive and ended up having to use task manager to close it. I captured a screen cast of this crazy behavior because it was so annoying, you can see it here (opens in new window).
Aside from this hiccup everything is running pretty smoothly. Firebug has an update that allows it to run in 3.6. Unfortunately ySlow does not yet run on 3.6.
I like the new personas (I know they’ve been around for a bit) as they do add a little character to your browser. I think that I might even make one in the not to distant future.
The JavaScript engine does appear to be a bit quicker though no too noticeably. I have been working on a large JavaScript application here at work and it is performing a bit better in 3.6 than in 3.5.x but Google Chrome is still the quickest from my experience.
I am not much of a plugin guy in Firefox so if you have had experience with 3.6 yourself and there are certain addons or pluggins you like I would love to hear about them!