[cassianoleal]

That doesn't happen to me at all. What happens is that the menubar shows, and the top bar of the browser (where the back/forward buttons and the URL bar are) slides down to give space to the window bar (with the zoom and close buttons) over the top of the browser.

That's all. All the content, sidebar, etc stays stationary.

It's true that Safari does it better, but honestly not by much.

[clumsysmurf]

Sidebar and content do stay stationary, but everything else (tabs, url bar, toolbars) shifts for me. Its hard selecting tabs when they cause a shift down, being they are at the top of the bang area.

The best part, is when they do shift down, they only expose empty space.