At Yahoo our "browser share" stats mean "unique visitors using this browser". A certain amount of effort goes into de-duplicating users to get the "unique" scor

At Yahoo our "browser share" stats mean "unique visitors using this browser". A certain amount of effort goes into de-duplicating users to get the "unique" score, but there's a pretty big margin of error. Page views are not taken into account, and downloads/installs are absolutely not considered (because nobody has reliable numbers on those anyway, not even the browser makers).