Customize settings and preferences

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

Compacting folders

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

Thunderbird Thunderbird Last updated: 08/09/2021

Signatures

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

Thunderbird Thunderbird Last updated: 05/24/2022

Archived Messages

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

Thunderbird Thunderbird Last updated: 07/08/2023

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 Thunderbird Last updated: 07/02/2021

Config Editor

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

Thunderbird Thunderbird Last updated: 10/25/2023

Configuration Options for Accounts

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

Thunderbird Thunderbird Last updated: 11/13/2018

Message List Columns

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

Thunderbird Thunderbird Last updated: 07/09/2017

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

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.

Thunderbird Thunderbird Last updated: 07/17/2018

How to Customize Toolbars

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

Thunderbird Thunderbird Last updated: 07/11/2023

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.

Thunderbird Thunderbird Last updated: 10/07/2021

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

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.

Thunderbird Thunderbird Last updated: 1 week, 1 day ago

Dangerous directories

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

Thunderbird Thunderbird Last updated: 06/26/2020

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."

Thunderbird Thunderbird Last updated: 06/12/2024

Creating a Newsgroup Account

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

Thunderbird Thunderbird Last updated: 07/23/2018

Configuration Options for Tags

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

Thunderbird Thunderbird Last updated: 02/01/2018
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