Topics
Explore the knowledge base.
- Appearance Panel - Layout, Message List, Card View, Table View, Sorting and Threading settings
- Thunderbird and Exchange
- Channel Choices for Thunderbird Snap and Flatpak
- What is the Mozilla Maintenance Service?
- Profiles - Where Thunderbird stores your messages and other user data
- Filelink for Large Attachments
- Thunderbird add-ons - frequently asked questions
- Thunderbird and Junk / Spam Messages
- 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
- OAuth2 for 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
Thunderbird and Junk / Spam Messages
This article explains how Thunderbird's adaptive filter learns to identify junk mail ("spam").
Channel Choices for Thunderbird Snap and Flatpak
This article discusses choosing a channel to install Thunderbird on Linux using Snap and Flatpak
Compacting folders
This article explains how Thunderbird stores messages on a disk drive and why it is necessary to periodically compact (purge).
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.
Join Our Community
Grow and share your expertise with others. Answer questions and improve our knowledge base.