9to5Linux Weekly Roundup for March 29th, 2026, brings news about Firefox 149, Krita 6.0, NVIDIA 595, Ubuntu 26.04 LTS Beta, Agama 19, Thunderbird 149, Kali Linux 2026.1, FreeCAD 1.1, LibreOffice 26.2.2, Tails 7.6, Calibre 9.6, Mixxx 2.5.6, SystemRescue 13, GIMP 3.2.2, KaOS 2026.03, and more.