Recent Firefox makes connections just by hovering over a link! No CSS, no JavaScript, no prefetch required. Set network.http.speculative-parallel-limit to 0 to disable it.
https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_speculative-pre-connections
#Mozilla #Firefox #Privacy
Learn about the various reasons why Firefox makes automatic connections to the Internet and how you can stop it from doing so if you wish.