@fivefilters On Some pages there are huge images in articles which are blown up in the FTR preview to the maximum screen size OR MORE.
e.g.:
https://ftr.fivefilters.net/makefulltextfeed.php?step=3&fulltext=1&url=https%3A%2F%2Fwww.nzz.ch%2Fmeinung%2Fg20-gipfel-warum-xi-jinping-fernbleibt-nzz-ld.1754637&max=3&links=preserve&exc=&submit=Create+Feed
Please consider to add a limitaion here to feed.css, for example 75% of window size:
img { max-width: 75%; width: auto; height: auto; }