Firefox's new theme does look a lot like Chrome. The tabs are more rounded and the color scheme is a bit different, but without going into the menus it's hard to tell them apart at first glance sometimes.
Oh yuck, they're bringing back the big wasted void along the top of my page? The fact that Firefox replaces the title-bar with tabs is my favorite feature of the darned thing.
Chrome and current FF have the same "big wasted void" when not maximized. You need something you can grab to drag the whole window about, as opposed to a single tab. It goes away when maximized, and I'd hope Australis will stay the same.
Oh wow, that's a nice touch. I'd never noticed that despite using it all the time, which I guess is a good sign.
Oh, right. I always keep FF maximized so I'd forgotten the empty-title-bar was visible in non-maximized forms.
This also highlights why Firefox's addon system is in some ways superior to Chrome's extensions - this would be impossible in Chrome.
Try Palemoon, it highlights FF's basic openness (and compile-ability on a _not_ 8gb+ rig) very well too and fast while it's at it.. Also I would advocate using a custom userChrome.css file for FF instead of extensions, much lighter and clearer setup in my opinion.