Advertisement
Thunderbird Biff
Firefox add-on that provides a visual indicator of the new Thunderbird mail...
indicator Thunderbird visual indicator Thunderbird mail Thunderbird client
Yet Another Mail Biff for ThunderBird
A Thunderbird add-on that notifies you when receive a new message...
message mail checker receive Thunderbird extension Thunderbird
Thunderbird Biff for Sunbird
A Sunbird add-on that provides a visual indicator of new Thunderbird mail availability in supported clients (Firefox, Sunbird) and Thunderbird itself...