How To

Articles that tell you how you can do more with Thunderbird

Import settings and data into Thunderbird

With Thunderbird's import tool, you can import settings and data from a variety of sources including Thunderbird profiles, other applications or files.

Thunderbird Thunderbird Last updated: 06/30/2022

Filelink for Large Attachments

Messages with large attachments are often rejected by mail servers. Thunderbird can use web-based storage services to send large file attachments.

Thunderbird Thunderbird Last updated: 12/03/2023

Export your Thunderbird Profile

Thunderbird's export tool lets you create a backup of your Thunderbird profile including accounts, messages, address books, and settings.

Thunderbird Thunderbird Last updated: 06/30/2022

Thunderbird 128 Nebula FAQ

This document answers questions for new users of Thunderbird 128 Nebula, in particular users who have upgraded from a previous version.

Thunderbird Thunderbird Created: 5 days, 15 hours ago

Archived Messages

This article explains how the "archive" feature of Thunderbird works.

Thunderbird Thunderbird Last updated: 07/08/2023

Ignoring threads

The Ignore Thread (or Subthread) feature is very useful for mailing lists. It lets you skip reading the rest of a conversation you're not really interested in.

Thunderbird Thunderbird Last updated: 09/03/2017

IMAP Synchronization

IMAP stands for the Internet Message Access Protocol. It enables a mail client (such as Thunderbird) to access messages stored on a mail server. It is more modern and fully featured than POP (Post Office Protocol), which is the other major protocol for accessing mail messages. Most email providers now support IMAP. To see whether your account uses IMAP or POP, check the Server Settings page in the Account Settings.

Thunderbird Thunderbird Last updated: 10/27/2015

Cannot send messages

If you cannot send messages with Thunderbird, this page provides a series of steps you can follow to check for common problems.

Thunderbird Thunderbird Last updated: 12/28/2023

Make Thunderbird the Default Mail Client

If Thunderbird is specified as your system's default email application, it will integrate with other applications (such as word processors and web browsers).

Thunderbird Thunderbird Last updated: 11/10/2018

Adding a holiday calendar

Learn how to add a list of holidays to your calendar in Thunderbird.

Thunderbird Thunderbird Last updated: 03/08/2019

Open Search

Instantly take part of a message and search for it in Bing, Yahoo, Twitter or other websites.

Thunderbird Thunderbird Last updated: 11/18/2018

Thunderbird 78 FAQ

This document answers questions for new users of Thunderbird 78, in particular users who have upgraded from a previous version.

Thunderbird Thunderbird Last updated: 12/05/2020

Thunderbird 115 Supernova FAQ

This document answers questions for new users of Thunderbird 115 Supernova, in particular users who have upgraded from a previous version.

Thunderbird Thunderbird Last updated: 01/11/2024

Installing an Add-on in Thunderbird

Add-ons add functionality to Thunderbird or change its appearance. Learn how to install add-ons to Thunderbird.

Thunderbird Thunderbird Last updated: 12/17/2023

New in Thunderbird 115 Supernova

Detailed introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird 115.0 Supernova.

Thunderbird Thunderbird Last updated: 01/12/2024

Add Search Engine to Open Search

Open Search enables Thunderbird users to search various websites from within Thunderbird. This article describes how to add additional websites to the Open Search interface.

Thunderbird Thunderbird Last updated: 11/25/2018

Managing Thunderbird Updates

Learn about automatic updates for Thunderbird deployments and how to ensure that the latest security patches are applied and all features are available.

Thunderbird Thunderbird Last updated: 09/03/2021

Profiling Thunderbird Performance

How to create a Thunderbird performance profile to find causes of high CPU load or slowness.

Thunderbird Thunderbird Last updated: 03/02/2024

New in Thunderbird 102

Detailed introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird 102.0.

Thunderbird Thunderbird Last updated: 09/15/2022

Thunderbird and OpenPGP Alias Keys

How to use the OpenPGP Alias Keys feature to bypass Thunderbird's usual requirement that an OpenPGP public key must contain the recipient's email address.

Thunderbird Thunderbird Last updated: 06/20/2022

New in Thunderbird 128 Nebula

Detailed introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird 128.0 Nebula.

Thunderbird Thunderbird Created: 5 days, 6 hours ago
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