Are you running this behind a proxy? Chances are, your firefox got stuck when trying to resolve the url you're downloading, with that proxy and failed to authenticate your credentials. Why not use WWW::Mechanize? I'm pretty sure it has some options for proxy authentication.

In reply to Re^3: Downloads in firefox using perl WWW::Mechanize::Firefox by robby_dobby
in thread Downloads in firefox using perl WWW::Mechanize::Firefox by pawaniitd

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