bocap

Cho minh hoi 2 dieu:
1). Minh da down plug-in doc DjVu roi va da xem duoc file, nhung bat buoc phai dung IE.
Neu minh dung FireFox thi can down phan mem gi ve?
2). Co chuong trinh doc lap nap doc file DjVu hay luon phai dung IE?
Thanks!