WebPageDump is a Firefox extension which allows you to save
local copies of pages from the Web. It sounds simple, but it's not. The
standard "Save page" function of web browsers fails with most web
pages and also web site downloaders do not work in a satisfactory manner.
This shortcomings were a serious problem for our research.
A more in-depth description, the extension itself
and some test datasets can be found at the
WebPageDump homepage.