Aug 222011
A concrete Firefox version could be downloaded by the following address:
http://www.mozilla.com/en-US/products/download.html?product=firefox-[VERSION]&os=win&lang=en-US
where [VERSION] is the desired version. For example for version 5.0 the URL will be: http://www.mozilla.com/en-US/products/download.html?product=firefox-5.0&os=win&lang=en-US
