Almost a month after releasing version 145, Mozilla has launched Firefox 146, the latest update to its popular open-source web browser, now available for download.
The release brings notable platform updates. Linux users running Wayland now benefit from native fractional scaling support, improving visual clarity and rendering accuracy on high-DPI displays.
On macOS, Firefox enables a dedicated GPU process by default, isolating WebGPU, WebGL, and WebRender. This change prevents full-browser crashes from graphics faults, instead restarting the GPU process transparently to maintain session stability.
Mobile users see improvements as well. Android now offers expanded options when a website’s file upload field does not specify accepted formats. Instead of being limited to file selection, users can choose to take a photo or record audio directly, streamlining interactions with apps and services that rely on media uploads.
Firefox 146 also adjusts how the browser delivers suggestions. English-language users in France, Germany, and Italy now receive English suggestions for holidays and other notable dates directly in the address bar. Additionally, Firefox Labs becomes available to all users, regardless of telemetry settings or study participation.
On Windows, the update includes a fix for an issue that prevented users from selecting tabs when the pointer was at the top of the screen, and Firefox was maximized on certain monitor types. At the same time, Mozilla has removed Direct2D support from Firefox; users who depend on this graphics path are directed to the ESR 140.0 series or later.
Regarding developers, the Inspector now hides unused custom properties by default, reducing visual clutter and improving responsiveness. Firefox 146 introduces support for post-quantum key shares in DTLS 1.3 for WebRTC, compressed elliptic curve points in WebCrypto, the contrast-color() CSS function, and the newly supported @scope rule for limiting styles to DOM subtrees.
Lastly, the text-decoration-inset property also debuts, giving authors more control over the placement of decorative lines. Rendering performance receives an additional boost with updates to the Skia graphics library.
Those eager to download this update immediately can do so directly from Mozilla’s servers.
Windows and macOS users can expect an over-the-air update within the following days. Linux users can expect Firefox 146 to appear in their distros’ repositories within the next few days as well.
