Eldenroot Hi, as I wrote in the title - we need an extension which will force all http:// (and https://) images (avatars, images in posts) load over https via image proxy. There is one completely free https://images.weserv.nl/ - it would be nice and useful addition. At least for security and SEO. I used this plugin for MyBB board - DVZ Secure content https://community.mybb.com/mods.php?action=view&pid=450
0E800 Eldenroot That extension will not prevent pixel tracking pngs or work with the signature extension. It only covers what's in the post. As @clarkwinkelmann suggests, it's best to blanket the site with a content security policy. https://discuss.flarum.org/d/4788-are-you-using-csp-headers-with-flarum