Steps to reproduce
Triaging as S3, and putting in the [print2020] bucket.
(I'm also clearing "firefox-esr68:unaffected" status because that gives the implication that this regressed in the 68-78 timeframe. Really, things improved here in that timeframe, but are still imperfect; the article text now shows up but is partly cropped. I would bet bug 1622935 is what improved things in that timeframe, or some related bug.)