After I noticed Firefox has removed the Pocket branding but kept the Pocket stories, I also noticed the settings screen on the homepage no longer lets you disable sponsored stories or links.
Firefox 115:
Firefox 139:
You can still remove these advertisements, but you have to leave the homepage and dig through the settings to find that option.
Note that for me Librewolf breaks several sites, sadly
I've found u they aren't broken if u spoof a chromium user agent
Thanks, will try that
Swap for mullvad in those cases