1) Type cmd in the Search box under the Start menu n right click the selected result and select Run as administrator.
2) Now type following command in Command Prompt
CODE
ftp ftp.osuosl.org
You will be asked for your user name, and just type anonymous, and specify a password. Simply pressing Enter will deal with the password request, and you have logged in successfully.
3) Now, type
CODE
cd /pub/mozilla.org/firefox/releases/2.0.0.11/win32/en-US/
and press Enter.4) Then type mget *.exe to access Firefox Setup 2.0.0.11.exe. After the download will be completed, type "Firefox Setup 2.0.0.11.exe" with the quotes to install the open source browser.
Source: Softpedia