Settings

Import settings and data into Thunderbird for Android

How to import email settings from K-9 and Thunderbird for Android

Compacting folders

This article explains how Thunderbird stores messages on a disk drive and why it is necessary to periodically compact (purge).

Message threading in Thunderbird - keep messages grouped by conversation

Threading is a useful way of displaying message list in Thunderbird with your messages grouped in tree structures by conversations. Here's how to enable it.

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.

Signatures

This article explains how to create and use custom signatures (text or images that are automatically appended to messages).

Export your Thunderbird Profile

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

How to create and use mailing lists on Thunderbird

A mailing list is used to send one email to a group of contacts. This article explains how to create and use mailing lists in Thunderbird.

Customize Date and Time formats in Thunderbird

How to customize date and time formats in Mozilla Thunderbird using regional settings or override preferences.

Archived Messages

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

Using Multiple Profiles

Thunderbird saves personal information such as messages, passwords and user preferences in a "profile". This article describes how to use multiple profiles.

Thunderbird and Junk / Spam Messages

This article explains how Thunderbird's adaptive filter learns to identify junk mail ("spam").

Installing an Add-on in Thunderbird

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

FAQ Changing IMAP to POP

If your mail server supports both IMAP and POP, Thunderbird will use IMAP by default. Use these instructions to manually configure a POP account.

Config Editor

Using the config editor to view or edit Thunderbird preference settings.

How to Customize the New Mail Sound

Learn how to customize the sound that plays when a new email message is received.

Display the Thunderbird menus and toolbar

The menu items File, Edit, View, etc. are located in the menu bar. This article will help you restore a missing menu bar.

How to disable or change the Thunderbird start page

Change the Thunderbird start page to any webpage, or set it to a blank page.

Thunderbird add-ons - frequently asked questions

Add-ons are extensions and other additions that add new functionality to Thunderbird or change its appearance.

Hyperlinks in Messages Not Working

When clicking hyperlinks in email, your default web browser should open and display their content. Learn why that may fail and why links may not be clickable.

Message List Columns

This article explains how to configure the columns that Thunderbird displays in message lists.

Configuration Options for Accounts

Learn about the Account Settings window including server settings, identities, signatures, and more.

How to Subscribe to News Feeds and Blogs

An introduction to RSS feeds, and instructions on how to use them in Thunderbird.

Instant Messaging and Chat

As of Thunderbird 52.x, Thunderbird supports instant messaging and chat using IRC, XMPP, Twitter, and Google Talk

Security panel - Junk, scam, antivirus, and password settings in Thunderbird

Learn about the Security panel of the Thunderbird Options/Preferences window including junk mail control, scam detection, antivirus integration, and passwords.

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.

Names but no Email Addresses are Displayed

I can only see the message sender's name, not address!

Install themes to change the look of Thunderbird

A theme is a type of add-on which changes the visual appearance of Thunderbird. Learn how to find, install, and manage themes within Thunderbird.

Dangerous directories

Some system folders are not allowed when setting Thunderbird storage location as they cause issues.

Primary Password is replacing Master Password in Thunderbird

Primary Password is replacing Master Password. Learn more about why we are making this change.

Upgrading from an older version of Thunderbird

This article will help you upgrade old versions of Thunderbird to the latest version.

New in Thunderbird 115 Supernova

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

Unified Toolbar

Intro to the Unified Toolbar and how to customize the buttons for the different toolbars for: Mail, Address Book, Calendar, Tasks, Chat and Settings "Spaces."

Creating a Newsgroup Account

Thunderbird can be used to read messages from and write messages to Usenet newsgroups.

Configuration Options for Identity

This page describes Thunderbird's configuration options that affect your identity.

Configuration Options for Tags

This page describes Thunderbird's configuration options as they relate to tagging messages.

Configuration Options for Attachments

This page describes Thunderbird's configuration options for attachments.

Certificates

Block a sender

How to Install and Use another Language in the Dictionary on Thunderbird

How to install and use additional language dictionaries on Thunderbird.

Installing Thunderbird on Ubuntu Linux

Open Search

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

Installing and Using another Language in the Dictionary

How to Customize Toolbars

This article explains how to customize the position and contents of Thunderbird toolbars.

Advanced panel - System, network, updates, and other advanced settings in Thunderbird

Learn about the Advanced panel of the Thunderbird Options/Preferences window including scrolling, system integration, network, update, certificates, etc.

Privacy panel - Remote content and cookie settings in Thunderbird

Learn about the Privacy & Security options in Thunderbird (mail/web content, cookies, passwords, junk/spam detection, data collection, antivirus, certificates).

Unable to install add-ons (extensions or themes) in Thunderbird

This article describes various reasons that would cause an add-on not to be able to be installed and what you can do to fix the issue.

Unable to uninstall add-ons (extensions or themes)

This article describes how to uninstall an extension or theme that can't be removed normally.

New in Thunderbird 102

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