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If you value privacy, ditch Chrome and switch to Firefox now
(www.fastcompany.com)
This is a most excellent place for technology news and articles.
I think you might looking at the 3.x series with nostalgia goggles tbh. I've used Firefox since 1.0 and while 3.x design is functional, it looks way too dated. I much prefer the new design with tabs up top.
I've used Palemoon, in this sense it's convenient. Just the maintainers are a-holes, and also performance is not good, and compatibility too, so not anymore.
Of course, Opera 9 is the pinnacle of browser UI design, nobody can argue with that, though I agree to give Netscape\Mozilla\Seamonkey the second place.