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Explore the knowledge base.
- Appearance Panel - Layout, Message List, Card View, Table View, Sorting and Threading settings
- Thunderbird and Exchange
- Move Thunderbird data to a new computer
- What is the Mozilla Maintenance Service?
- Profiles - Where Thunderbird stores your messages and other user data
- Thunderbird and Junk / Spam Messages
- OAuth2 Authentication for Yahoo, AOL and ATT
- Compacting folders
- 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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Move Thunderbird data to a new computer
How to move Thunderbird data (accounts, messages, passwords) to a new computer.
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.
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.
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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