Compacting folders
This article explains how Thunderbird stores messages on a disk drive and why it is necessary to periodically compact (purge).
Thunderbird and Junk / Spam Messages
This article explains how Thunderbird's adaptive filter learns to identify junk mail ("spam").
Archived Messages
This article explains how the "archive" feature of Thunderbird works.
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.
Configuration Options for Accounts
Learn about the Account Settings window including server settings, identities, signatures, and more.
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.
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.
Customize Date and Time formats in Thunderbird
How to customize date and time formats in Mozilla Thunderbird using regional settings or override preferences.
Creating a Newsgroup Account
Thunderbird can be used to read messages from and write messages to Usenet newsgroups.
How to Customize the New Mail Sound
Learn how to customize the sound that plays when a new email message is received.
How to disable or change the Thunderbird start page
Change the Thunderbird start page to any webpage, or set it to a blank page.
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.
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.
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.
Config Editor
Using the config editor to view or edit Thunderbird preference settings.
Names but no Email Addresses are Displayed
I can only see the message sender's name, not address!
Configuration Options for Identity
This page describes Thunderbird's configuration options that affect your identity.
Configuration Options for Attachments
This page describes Thunderbird's configuration options for attachments.
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 Includes Cookies, Remote Content, Junk/Scam detection
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.
