I have downloaded firefox setup its run and started downloading but didnt download anything. Later on, i have canceled the setup an another webpage open where also a download link which is mentioned below. http://download-installer.cdn.mozilla.net/pub/firefox/releases/34.0.5/win32/en-US/Firefox%20Setup%2034.0.5.exe From the above URL am getting error Bad request, i guess am unable to get sync with download server due to which initial setup unable to download file.