I've noticed that since my latest Firefox update, the images for character sheets (all of them) do not load. After poking about to figure out what was going on I realized the common thread. Roll20 serves images for char sheets through imgsrv.roll20.net (likely to prevent injections via images). HOWEVER, the link to this server is using http instead of https. Since everything else on the page is served through https, Firefox is blocking the images to avoid the potential security risk. I have not found a way to fix this on my end to show the images, but it'd be an easy fix if the devs were able to change the coding of the sheets to use <a href="https://imgsrv.roll20.net" rel="nofollow">https://imgsrv.roll20.net</a> instead of <a href="http://imgsrv.roll20.net" rel="nofollow">http://imgsrv.roll20.net</a>
