Thunderbird 3
Thunderbird 3 now has tabs, better search, and email archiving.
What’s New In Thunderbird 3?
Tabs and Search
If you like Firefox’s tabbed browsing, you’re going to love tabbed email. Thunderbird 3's tabbed email lets you load emails in separate tabs so you can quickly jump between them.
Search results open in a new tab too. New tools like our timeline and filtering tools will help you pinpoint the email you're looking for, whether it's the one from yesterday, last month, or several years ago.
Your Mail, Your Way
Customize Thunderbird however you want, whether it's to make you more productive or to make Thunderbird more fun. You can choose from hundreds of add-ons like the Lightning Calendar to manage your schedule or Personas to change Thunderbird's look.
You can now find and install new add-ons directly from the Add-ons Manager.
Easier to Get Started
Prior to the new account wizard, you had to know your IMAP, SMTP, SSL/TLS settings. Now all you need to provide is your name, email address, and password and the new mail account setup wizard will find the email settings for you.
In the spirit of community, if we don’t have your email settings, you can contribute your email settings so users with the same email provider will benefit from your contribution.