Changes are few and far between in this latest build, with the only noteworthy feature being support for Jump Lists in Windows 7. It means that Windows 7 users can now right-click the program’s Taskbar icon to quickly compose a new message or open Thunderbird’s Address Book.
Other changes are largely bug fixes, there are several of these implemented to correct problems when importing email from Microsoft Outlook, while Linux users should now find the default mail check works correctly.
Thunderbird 6 is open-source downloaded for Windows,Mac and Linux with free charges.