Short answer: No, that is not the Mac way...
Long answer: The Mac paradigm is multitasking, and windows maximize to the size they need to be, not the entier screen, thus making room for more applications and/or some Finder space, which in turn makes drag'n'drop (another Mac paradigm) easier. But, there is a workaround for browser windows, if you still want it: Make a bookmark in the bookmarks bar, name it appropriately (mine is called [F]) and change the URL/location to: javascript:self.moveTo(0,0);self.resizeTo(screen.availWidth,screen.availHeight);
Grumpy answer: Please use the search function. This has been asked very, very often...