A month after the release of Firefox 145, which marked the end of 32-bit support on Linux, Mozilla has announced the anticipated launch of Firefox 146, scheduled for December 9, 2025. This update brings several noteworthy enhancements.
One of the most significant features is the native support for fractional-scaled displays on Linux/Wayland, enhancing rendering efficiency. Additionally, macOS users will benefit from a dedicated GPU process by default, improving graphics performance.
Firefox 146 also introduces an AI-powered feature that generates key points from the beginning of web pages for link previews. This feature aims to facilitate quicker information access. Furthermore, the context of the address bar has been refined for users in France, Germany, and Italy, where users will now see suggestions in English for various important events and holidays.
For Android users, file uploads have been streamlined. The browser allows users to easily choose files, capture photos, or record audio even when the website does not specify accepted file types.
Windows users will notice a fix addressing an issue that hindered tab selection under specific conditions, alongside the removal of support for Direct2D graphics.
Web developers can anticipate various new capabilities, including the integration of post-quantum keying methods in DTLS 1.3 for WebRTC connections, as well as support for the contrast-color() CSS function, adding further flexibility to web design.
The Inspector tool has been updated to default to hiding unused custom properties, thereby decluttering the view and enhancing performance. Additionally, support for the -webkit-fill-available keyword as a value for the CSS width and height properties has been added, aiding in the proper rendering of designs utilizing this style.
Mozilla plans to officially unveil Firefox 146 tomorrow, but users can already access the source tarball and binaries, suitable for 64-bit, 32-bit, and ARM64 systems at Mozilla’s download server.