Thunderbird is the free email client from the Mozilla family, with calendar, address book and OpenPGP encryption. Besides the yearly extended support release there is a monthly channel and an app for Android. This page collects news about versions, new features and the project.
Mozilla Thunderbird 158 open-source email client is now available for download with updated ExtensionSettings policy, improved quick filter responsiveness, and numerous bug fixes.
Mozilla Thunderbird 158 improves Quick Filter performance and fixes OpenPGP, CardDAV, CalDAV, and Linux authentication issues.
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The team has been working hard behind the scenes laying a strong foundation for the Thunderbird iOS app, building natively from scratch.
The seasons are changing, and so is our Calendar UI. Learn more about this, Exchange support progress, contribution guidelines, and more.
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