I have Ubuntu 12.04 and recently started using Thunderbird.

I have GMail account and have configured a lot of Labels in it, all of which appear as folders in Thunderbird. Most of these are just subscriptions to mailing lists and are not that important.

I have a few labels which are very important, for whom I would like immediate notification when a mail arrives.

The problem is that the Mail indicator in the Unity top Panel, lights up for any incoming mail. How do I configure it to indicate incoming mails only in certain folders?