Since yesterday for some reason the tiny icon has disappeared from my tabs. That is the little icon that usually sits to the left of a tab's 'title'. I'm not sure why it's done this, I recently installed a script on Greasemonkey and another add-on but I didn't actually have any problems and the icon was still around even after using both add-ons. The only thing I can think of is that late last night I happened to run a scan using iobit's Advanced System Care and that was when the icons disappeared. BUT! I've since restarted firefox many times since then and the icons are still missing with only two exceptions: 1) The Firefox logo that appears when you're on any mozilla page; 2) an icon that belongs on a fanfiction site; no other websites appear to be showing their icon and instead simply have as a square border of a dashed line. (I've included a <b>screenshot</b> below!) Please, is there anyway to fix this?