Firefox 146 has been released, introducing full Wayland fractional scaling, daily local Windows 10 backups, expanded weather widget access, GPU crash safeguards for Mac, and more https://alternativeto.net/news/2025/12/firefox-146-adds-wayland-fractional-scaling-windows-10-backups-and-eu-weather-widget/

VLC 3.0.22 introduces a dark mode for Qt on Windows/Linux, supports Qt6, and enhances ARM64 builds. It improves codec handling, playback reliability, and hardware support, with fixes for various platforms https://alternativeto.net/news/2025/12/vlc-3-0-22-adds-dark-qt-mode-amd-frame-rate-doubler-and-codec-improvements/

Proton has launched Proton Sheets, an end to end encrypted spreadsheet app that offers a privacy focused alternative to Google Sheets and Excel. It includes real time collaboration and secure data handling, and Proton says none of the content is used for AI training https://alternativeto.net/news/2025/12/proton-launches-sheets-a-privacy-first-encrypted-alternative-to-excel-and-google-sheets/

Anthropic has acquired Bun, an all-in-one JavaScript toolkit, to accelerate its development and enhance its Claude Code product. Bun will remain open-source, with plans for rapid updates and AI integration. https://alternativeto.net/news/2025/12/anthropic-acquires-bun-to-accelerate-its-development-and-integration-into-claude-code/