Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

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Featured Articles

Thunderbird and Junk / Spam Messages

Thunderbird and Junk / Spam Messages

This article explains how Thunderbird's adaptive filter learns to identify junk mail ("spam").

Remote Content in Messages

Remote Content in Messages

This page explains the privacy implications of allowing remote content like images to be displayed in email messages.

Compacting folders

Compacting folders

This article explains how Thunderbird stores messages on a disk drive and why it is necessary to periodically compact (purge).

Profiles - Where Thunderbird stores your messages and other user data

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".

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