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Explore the knowledge base.
- Appearance Panel - Layout, Message List, Card View, Table View, Sorting and Threading settings
- Thunderbird and Exchange
- What is the Mozilla Maintenance Service?
- Profiles - Where Thunderbird stores your messages and other user data
- Update Thunderbird to the latest version
- Compacting folders
- Thunderbird and Junk / Spam Messages
- Thunderbird add-ons - frequently asked questions
- Protect your Thunderbird passwords with a Primary Password
- Master password requested but not set Redirect 1
- Certificates
- Protect your Thunderbird passwords with a Primary Password
- Primary Password is replacing Master Password in Thunderbird
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Ask the CommunityFeatured Articles
Thunderbird and Junk / Spam Messages
This article explains how Thunderbird's adaptive filter learns to identify junk mail ("spam").
OAuth2 Authentication for Yahoo, AOL and ATT
How to set up Yahoo! services (including AOL, ATT and other services that use Yahoo servers) in Thunderbird.
Compacting folders
This article explains how Thunderbird stores messages on a disk drive and why it is necessary to periodically compact (purge).
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.
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