Good, but one thing, what if I want to save to HTML only a select number not all 300 or so tabs I have open? There doesn't seem to be an option around for this other than OneTab, that is itself limited in various regards (very unfortunately :(, or to bookmark them and then export them to HTML via another add-on (such as Selective Bookmarks Export Tool).

Great addon, but I would add something like

a{text-decoration:none}

to make text more readable,
and add some space between the lines for the same purpose.
Thanks.