so, what can we conclude from this?
it is obvious that IE is mostly used on work, back home they are using chrome, and as a result they talk to system administrators on work to install them Chrome on work.
So, that means that people who used to use IE are now using chrome, that says something about chrome.
On the other hand, firefox has steady number of users who knows what is the best quality of firefox and no browser can replace it.
in the end it will be only chrome vs firefox, but chrome will be mainstream because of its easiness and cleanliness, but not necessarily in-depth better than firefox