How to configure Thunderbird to notify new mails only in certain folders?

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http://askubuntu.com – 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? (HowTos)