Latest Update Rated 5 out of 5 stars
I have the same problem, no icon visible:
I am using Firefox22, but still using 'Downloads' window. (about:config -> browser.download.useToolkitUI;true)
On Version 0.9.13 Auto Shutdown NG Icon is disappeared on 'Downloads' window. Please restore the icon.
Thanks for your support, great Addon!
Fixed in Version 0.9.14