Rated 3 out of 5 stars
Nice add-on -- causes no hiccups & grabs the screen. However, be aware that:
1. This does not work with frames (e.g. if a site has a left frame navigation this will grab one frame or the other but not both).
2. The PDF file is VERY Low resolution (as in "100% ugly").
3. It always grabs scrollbars as well as the rest of the screen.