Thunderbird 2.0.0.9

Thunderbird 2 features many new enhancements to help you better manage your unruly inbox, and stay informed. Thunderbird 2 scales to the most sophisticated organizational needs while making it easy to find what you need.
Advanced Folder Views

Thunderbird 2 offers a variety of ways for you to organize and display your folders, whether by favorites, recently viewed or folders containing unread messages. As always, you can also set up RSS and newsgroup folders to stay on top of news and your interests. Thunderbird 2 also allows you to maximize your message view pane by opting for a folder drop down menu instead of the traditional sidebar.
Message Tagging

Thunderbird 2 allows you to “tag” messages with descriptors such as “To Do” or “Done” or even create your own tags that are specific to your needs. Tags can be combined with saved searches and mail views to make it easier to organize email.
Message History Navigation

Thunderbird 2 offers message history navigation that allows you to click “forward” and “back” much like in your Web browser. You can now quickly toggle between messages and folder views.
Improved Search

Thunderbird 2 features a find as you type pane that speeds up searches within displayed messages. Thunderbird also offers quick search, which starts showing search results as soon as you start typing in search terms.
Saved Searches

Do you find yourself searching for the same subject or message content over and over? Thunderbird 2 saves you time by allowing you to store this search as a folder. Rerunning the search is just a matter of clicking on the saved search folder in the folder pane.