I just spent more than 3 hours testing all the "printing" add-ons I could find, with all their options, and all of them failed in one way or another. Fireshot was the only one that finished the job: full embedded images, full text content, selectable text in its correct order, working links. Text comes with the Pro version, which is supposed to be paid, but free for now anyway.

(I even tried using Firefox's full page "screenshot" + ocrmypdf, but the text order gets garbled, so text selecting is unusable!)