Kitsutsuki email client
Kitsutsuki is a Mozilla Thunderbird (version 38.9.0 ESR) e-mail client fork, based on TenFourFox and TenFourBird. It follows the same concepts as Fukurou, removing unneeded features and focusing on privacy. It’s built for the PowerPC architecture and Mac OS X 10.5 platform supported (which means it will only work on G5 7450 and G5 CPUs running Mac OS X 10.5 Leopard) and it does have the latest certificates from Firefox ESR128.
| Language | C, JavaScript, XML |
| License | MPLv2 |
| Version | 2.0 |
| Release date | October 22, 2025 |
| Download | v2.0 DMG file for G4 CPU, v1.0 DMG file for G5 CPU |
| Source | zip archive |
Extensions
- CustomizeMyBird version 2.8 can be downloaded and installed, reverts to the old Thunderbird UI and allows additional customization. Screenshots 2 and 3 show Kitsutsuki with CustomizeMyBird active.
Screenshots
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Building Kitsutsuki
work in progress
License
Kitsutsuki is released under Mozilla Public License v2.0.
permalink http://sizeof.cat/project/kitsutsuki/
created August 12, 2025
updated October 22, 2025
words 143
tags #projects, #email, #kitsutsuki
