Display unread messages in Thunderbird thanks to a new experimental extension by Huahe.
Sound familiar in function? That’s because it kind of is.
But, and here’s the great bit, Huahe told us that his extension “does not need a Thunderbird alpha” and ‘works with the one [available by default] in Ubuntu 11.04.’
If experimental extensions are your thing, nab it and add it @ addons.mozilla.org/en-US/thunderbird/addon/unity-unread-count/