Opera seems to be the fastest browser for windows. Firefox is not faster than Internet Explorer, except for scripting, but for standards support, security and features, it is a better choice. However, it is still not as fast as Opera, and Opera also offers a high level of standards support, security and features.
Detto ciò... the winner is:
Quindi sfatiamo 1 volta x tutte il mito che FireFox è + veloce di IE ... xchè è una gran cazzata!