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

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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".

Filelink for Large Attachments

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.

Thunderbird add-ons - frequently asked questions

Thunderbird add-ons - frequently asked questions

Add-ons are extensions and other additions that add new functionality to Thunderbird or change its appearance.

Compacting folders

Compacting folders

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

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