Mozilla Thunderbird

free and open source email client and personal information manager

Mozilla Thunderbird is a free cross-platform e-mail client developed by MZLA Technologies Corporation which is a subsidiary of the Mozilla Foundation.[2]

Mozilla Thunderbird
Developer(s)Mozilla Corporation
Stable release
115.12.0[1] Edit this on Wikidata / 13 June 2024
Operating systemCross-platform
Available inMultilingual
TypeE-mail client
LicenseMPL, MPL/GPL/LGPL tri-license Edit this on Wikidata
Logo of Thunderbird from 2003-2004.
Logo of Thunderbird from 2004-2009.
Logo of Thunderbird from 2008-2013.


  1. "Release Notes". 13 June 2024. Retrieved 13 June 2024.
  2. Castellani, Alessandro (2023-02-09). "Why We're Rebuilding The Thunderbird Interface From Scratch". The Thunderbird Blog. Retrieved 2023-11-08.
Logo of Thunderbird from 2018-2023
Logo of Thunderbird from 2023-present.