Importing Web pages - bookmarklet?

I’ve searched to see if a bookmarklet exists to allow the instant import of Web pages but I can’t find one.
I wonder how hard it is to write such a beast and whether it is in fact possible.
A ‘Scrivener Bookmarklet’ would sit in the top bar of Firefox browser and when clicked would just import the current Web page into Scrivener.
I use exactly such a beat with Devonthink to store pages. Having the same facility for Scrivener would be a godsend.
Anyone out there with technical knowledge who’d like to have a go at making one?