> IIRC, FF stores its cookies in sql lite, an encoded
> form, not in plain text. You could NOT have pasted
> anything appropriate.

Not really, I have of course exported the cookies.sqlite into cookies.txt
using Firecookie, which works for other sites.

What I get are two lines that concern my site:
is.cuni.cz	FALSE	/teststud/	FALSE	PHPSESSID	the-id-strin
is.cuni.cz	FALSE	/teststud/	FALSE	ids	some-other-string

This some-other-string is rather long (400 chars) and it is this string that
causes httrack to crash. If I delete the second line or replace
some-other-string with something shorter, httrack does not crash, but I
obviously do not get logged in. 

I have checked the linked page previously, but didn't find any help there. And
in any case, httrack should crash, should it?