Install the Thunderbird Pro Add-on in Thunderbird Desktop

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NOTE: Thunderbird Pro is currently in its Early Bird release and available by invitation only. To learn more and join the waitlist, visit our website. We’ll be opening Thunderbird Pro to the public once the Early Bird release concludes.

PLEASE NOTE: Thunderbird Pro requires Thunderbird 140 for Desktop or newer. We recommend the latest monthly release version of Thunderbird, which is documented here: New in Thunderbird Desktop.

Install the Thunderbird Pro Add-on

The Thunderbird Pro add-on is installed like any other Thunderbird add-on:

  1. Thunderbird app menu > Settings gear icon gear icon > Add-ons and Themes.
  2. Enter “Thunderbird Pro” in Find more add-ons.
  3. Click Add to Thunderbird and then Add in the dialogue that pops up. Follow the prompts to complete the process.
    2026-02-10 how install tb pro add-on

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