Problem?

Wget allows you to specify a cookies.txt file when you invoke wget, but Firefox 3 does not use cookies.txt but rather cookies.sqlite.

Solution:
Export Cookies 1.0

"Exports all cookies in IE manner.
Makes a Netscape standard cookies.txt file.
Very useful for WGET --load-cookies option."

https://addons.mozilla.org/en-US/firefox/addon/8154

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