Honestlly, I'm ambivalent on the navigation bar change. It is quite tall but sometimes helpful.

As for the url bar, thank GOD they put the full URL back. I think this all "better against phishing" is BS and most users aren't looking anyhow. If you need to at all differentiate it, but the domain in bold and let the rest of the url be in normal font. But for the love of cake don't have ONLY the domain. I can't even explain how frustrating that is. Please keep the full URL mozilla.