How to full screen mode safari?

In windows you can do the apps fullscreen but not in Mac, pal. Well, there are plugins to do this but this is not even required because Mac's UI is simple and sleek and you can use any app without the need of maximizing it.

You can manually drag the corners of the Safari window and put them near the corners of your screen to have a full screen experience like in windows.

OR

download this plug-in specially made for this purpose:

haoli.dnsalias (/Saft/index.html)

It adds a new preference pane in your Safari called 'Saft', & two extra menu items under the Safari menu, above the 'Preferences..', called 'Full Screen' & 'Max Screen'.
Select 'Full Screen' to turn on the full-screen feature.