I've just googled the english part of the error message and it turned out that this is a typical problem for lamers: it is not enough to install the mozrepl extension but you have to explicitly run it or set the option 'Activate on startup' :). Now I'm able to open a web page. But it is still not clear how to use this module to submit a form or login to some site. Is there any tutorial on this that you recommend?
in reply to Re^6: fetching and storing data from web.
in thread fetching and storing data from web.