Fix slowness, crashing, error messages and other problems

Rebuilding the Global Database

Rebuilding the Global Database will initiate a re-indexing of emails and address book cards (newsgroup messages are not indexed).

Last updated: 08/28/2018

If you cannot receive messages, this page provides a series of steps you can use to check for common problems.

Last updated: 12/28/2023

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

Last updated: 12/28/2023

This article explains how to fix issues with message deletion caused by a missing or corrupted trash folder.

Last updated: 07/14/2017

Created: 02/13/2014

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

Last updated: 06/26/2020