We’ve made the hard decision to end our experiment with Mozilla.social and will shut down the Mastodon instance on December 17, 2024. Thank you for being part of the Mozilla.social community and providing feedback during our closed beta. You can continue to use Mozilla.social until December 17. Before that date, you can download your data here (https://mozilla.social/settings/export), and migrate your account to another instance following these instructions (https://support.mozilla.org/en-US/kb/mozilla-social-faq).
Sounds to me like an extension that by design tracks every Web page you visit.
Not necessarily and only those you comment.
That’s the point, to comment any webpage. It’s clear you visited it if you comment it.
Presumably it loads comments when you visit a page. That would send a request with the URL to whatever service they’re running.