Use wget:

wget --mirror -p --html-extension --convert-links www.example.com

the options explained:

-p                  get all images, etc. needed to display HTML page.  
--mirror            turns on recursion and time-stamping, sets infinite 
                    recursion depth and keeps FTP directory listings
--html-extension    save HTML docs with .html extensions  
--convert-links     make links in downloaded HTML point to local files.  


==> ScrapBook Firefox Extention