Feedback: a little more compact UI

[Jackymancs4]

I usually use a 13" screen laptop and every pixel matters. So I would like to suggest to compact a little the UI, by e.g. reducing top/bottom padding, removing or resizing the header title and lining up search bar and tools bar.

This is just a mockup created by playing with the DOM:

This way I gained almost twice the vertical space of the Firefox bar.