Use Firefox Reader View after the page covers the content with the article limit banner. Reader View is an icon that appears on the right side of the address bar.
Even better: These extensions let you open the page directly in Reader View, the 1st via context menu, the 2nd via list of sites to be always opened in Reader View:
https://addons.mozilla.org/firefox/addon/reader-view/
https://addons.mozilla.org/firefox/addon/automatic-reader-vi...