While the total market share of Mozilla Thunderbird as an email client has declined through the years, it remains to be one of the most well loved email clients of Linux users.

Mozilla Thunderbird, which has been around since 2004, is free and open-source. Aside from being an email client, it also functions as a personal information manager, a news client, an RSS client, and a chat client. It works in various operating systems, not just Linux.

Great support for multiple email accounts

Mozilla Thunderbird has great support for multiple email accounts.

You do not have to manually switch the context to an email account before you can start using it. In fact, Mozilla Thunderbird allows you to see the folders of your different email accounts in a single view. You are also able to launch a single Compose window and select the sender from there.

These features are a big time-saver for people who manage more than one email account.

How to add an email account

To add an email account:

1. Launch Mozilla Thunderbird.
2. Click “Tools” or click the application menu button.
3. Select “Account Settings”.
4. At the bottom of the left pane, click “Account Actions”.
5. Select “Add Mail Account”.
6. Enter your email account details and press “Continue”.