Thunderbird saves personal information such as messages, passwords and user preferences in a set of files called a "profile".
Thunderbird's Safe Mode is used for troubleshooting and fixing problems. We'll explain how to get into Safe Mode and what the various options do.
You have launched an older version of Thunderbird
If your mail server supports both IMAP and POP, Thunderbird will use IMAP by default. Use these instructions to manually configure a POP account.
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.
This article explains how to fix issues with message deletion caused by a missing or corrupted trash folder.
Rebuilding the Global Database will initiate a re-indexing of emails and address book cards (newsgroup messages are not indexed).
The Mozilla Crash Reporter dialog box appears when Thunderbird crashes and lets you send a crash report. Learn how it works and how to access your crash reports.
If you cannot receive messages, this page provides a series of steps you can use to check for common problems.
This article explains the sending and receiving functions in Thunderbird.
If you cannot send messages with Mozilla Thunderbird, this page provides a series of steps you can use to check for common problems.
How to create a Thunderbird performance profile to find causes of high CPU load or slowness.