To answer the question "why is the keyboard shortcut for the search box different between firefox and internet explorer?", I would say is innovation.
By the way, to get to the search box in...
Firefox: Control + K
Internet Explorer (7): Control + E
Why they made them different beats me. Why shortcuts differ between mac, windows, and linux versions of the same product also beats me. This is no added feature, but I'm glad it bothered me enough to look it up, now if I forget, well then hopefully something more interesting is refusing to give up its brain space.
...family guys quotes..