Apps :: Install scrapbook to Firefox without internet

I have a question. How would I go about installing the "scrapbook" firefox extension when my laptop doesn't have an internet connection? Here's the name of the file that comes off the Mozilla website:

scrapbook-1.2.0.8-fx+fl.xpi

Reason: I don't have the time to figure out why I can't get an internet connection on my laptop but I love the ease of use with the scrapbook extension on firefox.

I've been happily using DSL on my Dell Inspiron, 64 mb RAM, 5 gb HDD, dual boot with WinME, for quite a few months now.

Thanks,

-eeek

original here.