thunderbird.net states at the bottom: Thunderbird is now part of MZLA Technologies Corporation, a wholly owned subsidiary of Mozilla Foundation.
> There was a time when Thunderbird’s future was uncertain, and it was unclear what was going to happen to the project after it was decided Mozilla Corporation would no longer support it. But in recent years donations from Thunderbird users have allowed the project to grow and flourish organically within the Mozilla Foundation. Now, to ensure future operational success, following months of planning, we are forging a new path forward. Moving to MZLA Technologies Corporation will not only allow the Thunderbird project more flexibility and agility, but will also allow us to explore offering our users products and services that were not possible under the Mozilla Foundation
> Note that Mozilla has nothing to do with Thunderbird anymore.
which fails to claim anything about the Mozilla Foundation or Corporation in particular.
> ... MZLA Technologies Corporation, a wholly owned subsidiary of Mozilla Foundation.
Mozilla the non-profit owns the for-profit corp who owns Thunderbird.
In their own words from the footer of https://www.thunderbird.net:
> Thunderbird is now part of MZLA Technologies Corporation, a wholly owned subsidiary of Mozilla Foundation.
> Who makes Thunderbird?
> Thunderbird is developed, tested, translated and supported largely by group of dedicated volunteers, plus paid staff. Thunderbird is an independent, community driven project. Therefore its paid staff, budget and fundraising are entirely managed and overseen by the Thunderbird Council, which is elected by the Thunderbird Community. Thunderbird development is made possible by funds donated by the Thunderbird community. (Mozilla Corporation, the makers of Firefox, and Mozilla Messaging no longer develop Thunderbird. But Mozilla still supports Thunderbird by hosting many of the Thunderbird resources.)
[1] https://support.mozilla.org/en-US/kb/thunderbird-faq#w_who-m...
Having decided to just look while writing this comment, apparently it was a couple million last year? Which doesn't seem bad.
I would love to donate to the browser, while my small donation won't make it independent from Google's money it might be a small step towards it.
I don't especially mind their political agenda, however that's not what I want to donate to, I have other political orgs I prefer.
Postbox is based on Thunderbird with a more modern UI, but its Windows and macOS only (does work in Wine).
I stick with FairEmail on Android for now. Its completely FOSS and in active development.