That, my friends, is how Winstripe looks in Firefox 0.9.1. I’m not so sure whether I like it – to be honest I prefer the original Winstripe icons from 0.9, but then I don’t tend to use the default theme, preferring Charamel (now 0.9-compatible). As far as I can tell, all my installed extensions – Tabbrowser Extensions, Firesomething and Web Developer Toolbar – work fine.
The only other theme changes affect the Theme and Extension Manager dialogs – here’s a screenshot of the new Theme Manager dialog, with new buttons and a new icon for the default theme.
Firefox 0.9.1 obviously isn’t out yet, like I did.