So I am trying o make the switch from Firefox to Chrome and one big hurdle for me is moving from Firebug to Chrome\'s developer tools. The developer tools works fine, I\'d just
Maybe Fn-F12 will do the trick? (IIRC, you can switch between the default behavior of F-keys in your system settings). Otherwise, it's ⌥⌘I
or ⌥⌘J
(the latter opens the console by default.) There is a good doc about the Web Inspector/DevTools shortcuts.
That said, Google Chrome's design is explicitly minimalistic to avoid UI clutter and reduce the chance of the user getting confused by the things they actually never use, so there is no way to invoke DevTools using a UI button.