This addon needs an external application to work. You can get it here:

Download the SysTray-X Companion application here



Windows


Start application minimized
Minimize on close

Icon

Default icon
Default Thunderbird
Hide icon
Custom icon  
Unread mail icon
Blank icon
New mail icon
Custom icon  
No icon
Number
Display unread message count  
 

Included accounts


Debug options


Display debug window