Thunderbird is a free, open-source and cross-platform mail client for most operating systems including, but not limited to, Windows, Linux and Macintosh. How can I access/change the Master Password?.I changed my IMAP password, how do I get rid of a cached password?.

How do I use S/MIME, PGP or GnuPG to send and receive signed or encrypted messages?.

How do I set Thunderbird to go directly to my Inbox?.

Is there a mail notifier in Thunderbird?.

Is Thunderbird susceptible to e-mail viruses?.

What's the keyboard shortcut for feature ?.

Can I use different themes for Thunderbird?.

Does Thunderbird come with a spell checker?.

How do I make Thunderbird my default mail program?.

How do I export e-mail messages to another mail program or computer?.

How do I import e-mail messages from another mail program?.

How do I import the address book (MacOS X)?.

How do I import e-mail messages from mail.app (MacOS X)?.

How do I import e-mail messages from kmail (Linux)?.

Can I access AOL and Netscape e-mail using Thunderbird?.

Can I access my Yahoo!, Hotmail, Lycos (Europe), MailDotCom, Gmail, and Libero WebMail account through Thunderbird?.

How do I migrate my Mozilla mail and settings to Thunderbird?.

How do I move my profile or restore a backed up copy?.

Where are my bookmarks, passwords and other personal information saved?.

Is Thunderbird available in my language?.

Why should I use Thunderbird instead of other mail clients?.

Which contains the most frequently asked questions about the mail client.

What is thunderbird mail