This week, we got new releases of the Firefox web browser, Thunderbird email client, Parrot and Kali Linux ethical hacking distros, KDE Plasma and Cinnamon desktop environments, KDE Gear and KDE Frameworks software suites, Mixxx DJ software, AerynOS, Grml, pearOS, and Tails distros, NVIDIA graphics driver, and Raspberry Pi Imager.
On top of that, I tell you all about System76’s first COSMIC desktop written in Rust on Pop!_OS 24.04 LTS. Below, you can check out this week’s hottest news and access all the distro and package downloads released this past week in the 9to5Linux weekly roundup for December 14th, 2025.