@librewolf - Feature Request:
I'm not quite knowledgeable enough to know the best solution within LibreWolf, but opening the URL network manager opens to trigger public wifi log in pages doesn't work. Somewhere between that URL and the prompt from the free wifi to agree not to look at porn or whatever, it just breaks. I'm sure it has to do with the fact LibreWolf insists (and rightly so) on HTTPS.