favicon is a loading circle animation that runs continuously forever when the page has a slideshow tag.
- Create a wordpress page with a simple slideshow tag in it.
- Use firefox only (version 16 and 17 has this problem in Linux or Windows), it works in IE or Chrome.
- Clear your cache, close firefox, open it to your site with the slideshow.
If you click anywhere and come back, the problem disappear, it's really only if your cache is cleared. This problem doesn't exist in IceWeasel, it's probably using firefox 10 or something.
Not a big bug, just kind of annoying.