Evernote Rated 4 out of 5 stars
Had not used webclipper for over a year, after changing to other PC, now it installed ok and without any problem on windows7 with firefox19. Sits at the end of the navigation toolbar, would have wished it to sit somewhere else, had some trouble finding it there.
So far used it only for two days, to copy whole pages or to copy just some selected text to both my evernote web and evernote on PC.
I use some other add ons and they all seem to work together pretty well and Firefox still works smoothly and fast.