v1.3.0

Add option to enable/disable alert notification (automatically disable for Thunderbird 31>, because it has its own alert notification, and if both are active, no notification work)

v1.2.0

New icon, tray icon notification (only for Windows)

v1.1.0

Can flash Thunderbird icon, add possibility to notify for messages from multi-user chats

v1.0.1

Minimal Mozilla Thunderbird version set to 15 (first with chat), update depracated interfaces and some warnings, max sound time set to 5s

v1.0.0

First public version