The story
Founded by Mozilla Corporation in 2008.1
Private company
Logo: https://web.facebook.com/Thunderbird/, Non-free logo, via Wikipedia3
Software company in Canada
Mozilla Messaging (abbreviated MoMo and formerly known as MailCo) was a wholly owned, for-profit subsidiary of the non-profit Mozilla Foundation. It was broadly tasked with aspects of the Mozilla Project that focused on interpersonal communications, such as instant messaging and e-mail. Its main focus was developing version 3.0 of Mozilla Thunderbird, the e-mail client developed by the Mozilla Foundation.2 It was founded by Mozilla Corporation.1 It is headquartered in Mountain View.1 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
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Mozilla Messaging (abbreviated MoMo and formerly known as MailCo) was a wholly owned, for-profit subsidiary of the non-profit Mozilla Foundation. It was broadly tasked with aspects of the Mozilla Project that focused on interpersonal communications, such as instant messaging and e-mail. Its main focus was developing version 3.0 of Mozilla Thunderbird, the e-mail client developed by the Mozilla Foundation.2
Founded by Mozilla Corporation in 2008.1
Listed on Wikidata.1
From Wikidata.1
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