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Thunderbird saves personal information such as messages, passwords and user preferences in a set of files called a "profile".
Messages with large attachments are often rejected by mail servers. Thunderbird can use web-based storage services to send large file attachments.
This article discusses choosing a channel to install Thunderbird on Linux using Snap and Flatpak
Add-ons are extensions and other additions that add new functionality to Thunderbird or change its appearance.
