| Versiones | Solicitudes | Porcentaje | ||
|---|---|---|---|---|
| Windows | 46563305 | 85.4 % | ||
 | Windows XP | 18568040 | 34 % |  |
 | Windows (unknown version) | 8955 | 0 % | |
 | Windows NT | 21542088 | 39.5 % | |
 | Windows Me | 2634 | 0 % | |
 | Windows Vista | 6269706 | 11.5 % | |
 | Windows CE | 7886 | 0 % | |
 | Windows 98 | 5713 | 0 % | |
 | Windows 95 | 1429 | 0 % | |
 | Windows 2003 | 93455 | 0.1 % | |
 | Windows 2000 | 62872 | 0.1 % | |
 | Windows 3.xx | 527 | 0 % | |
| BSD | 495 | 0 % | ||
 | NetBSD | 1 | 0 % | |
 | FreeBSD | 494 | 0 % | |
| Linux | 2593261 | 4.7 % | ||
 | Ubuntu | 523705 | 0.9 % | |
 | Suse | 2641 | 0 % | |
 | Red Hat | 62 | 0 % | |
 | Mandriva (or Mandrake) | 4557 | 0 % | |
 | Fedora | 6437 | 0 % | |
 | Debian | 11657 | 0 % | |
 | Centos | 1058 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 2043144 | 3.7 % | |
| Macintosh | 3990966 | 7.3 % | ||
 | Mac OS X | 3990907 | 7.3 % | |
 | Mac OS | 59 | 0 % | |
| Otros | 1350354 | 2.4 % | ||
 | Desconocido | 1100415 | 2 % | |
 | Symbian OS | 209146 | 0.3 % | |
 | Unknown Unix system | 34037 | 0 % | |
 | Sony PlayStation Portable | 6070 | 0 % | |
 | Sun Solaris | 618 | 0 % | |
 | OS/2 | 60 | 0 % | |
 | Irix | 3 | 0 % | |
 | OSF Unix | 2 | 0 % | |
 | RISC OS | 2 | 0 % | |
 | HP UX | 1 | 0 % | |