Topics
Explore the knowledge base.
- Appearance Panel - Layout, Message List, Card View, Table View, Sorting and Threading settings
- Thunderbird and Exchange
- Profiles - Where Thunderbird stores your messages and other user data
- What is the Mozilla Maintenance Service?
- Update Thunderbird to the latest version
- Avoid and report Mozilla tech support scams
- Protect your Thunderbird passwords with a Primary Password
- Master password requested but not set Redirect 1
- Protect your Thunderbird passwords with a Primary Password
- Primary Password is replacing Master Password in Thunderbird
Still need help?
We’re here for you. Post a question to our support forums and get answers from our community of experts.
Ask the CommunityFeatured Articles
Avoid and report Mozilla tech support scams
Mozilla does not provide telephone support and does not charge for software downloads, upgrades or technical help. Learn more.
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").
Profiles - Where Thunderbird stores your messages and other user data
Thunderbird saves personal information such as messages, passwords and user preferences in a set of files called a "profile".
Join Our Community
Grow and share your expertise with others. Answer questions and improve our knowledge base.