We have two browsers waging an underground war for supremacy.

IE7 that has come out, made it a point that it copies what all that was making Firefox rating go rocketing skyward.

They brought about the tabbed browsing. I agree that every browser is supposed to have that. But IE was simple late to realize it.
What about the Zoom In/Out short cut, its Ctrl + and Ctrl – .

Here is something for IE8 to include, in the search bar of Firefox just give any simple mathematical equation say 1 +1 you have the answer right there …