[-Fx-] Firefox 146.0 Released

[rick (物以類聚人以群分)]

官方版本147.0預計在 2026年01月13日(美國時間) 台灣時間01月13日~01月14日 更新

146.0 Release Note
https://www.mozilla.org/en-US/firefox/146.0/releasenotes/

New︰

    Windows 10 users can now automatically protect their passwords, bookmarks,
and more by turning on backup in Firefox. Your browsing data is saved daily
on your device and can be encrypted with a password. When you set up a fresh
install of Firefox on any operating system for a new device or your current
one, you can restore from this backup and pick up right where you left off.
This feature is currently available on Windows devices and will be coming to
other operating systems soon.
https://i.meee.com.tw/uQ7O010.png

    MacOS users now have a dedicated GPU process by default. This includes
WebGPU, WebGL, and Firefox's own WebRender. With this feature enabled, fatal
errors in graphics code will no longer crash the browser, and will instead
transparently restart the GPU process.

    Firefox Labs is now available to all users, regardless of whether they
choose to participate in studies or submit telemetry. This means more
experimental features are now available to more people.
https://is.gd/NkiIfd

    Users can now skip the results page and see direct results as they type in
the search bar for faster, simpler browsing.
https://i.meee.com.tw/ac1ugyt.webp

    There is a New Tab Weather opt-in workflow available for users in the EU
and some other countries, where they can choose whether to enable location
detection or manually search for a location.
https://i.meee.com.tw/krdlEZx.png

    Firefox now natively supports fractional scaled displays on Linux
(Wayland), making rendering more effective.

    For users of the English-language versions of Firefox in France, Germany,
and Italy, the address bar now shows English-language suggestions for holidays
and other important dates.


Fixed︰

    When the timepicker is enabled for <input type="time"> and <input
type="datetime-local">, it now provides full keyboard and assistive
technology support. This update also improves the behavior of the time spin
buttons for users who prefer reduced motion. The Firefox Accessibility team
hopes that making the built-in timepicker accessible will encourage wider
adoption of browser-provided time and date inputs across the web, reducing
the need for custom controls, and improving accessibility for all users.

    Fixed an issue that prevented Windows users from selecting a tab when the
cursor was at the top of the screen and Firefox was maximized on some kinds
of monitors.

    Various security fixes.
https://www.mozilla.org/en-US/security/advisories/mfsa2025-92/


Changed︰

    The Colors dialog in Settings now uses clearer color picker controls that
keep each color sample next to its label. It makes it easier to understand
and adjust text, background, and link colors when using a forced colors
palette to customize the default text, link, and page background colors,
especially with or without screen magnifiers.
https://i.meee.com.tw/FvVgjsJ.png
https://support.mozilla.org/kb/change-fonts-and-colors-websites-use

    Firefox removed support for Direct2D on Windows. If you still require
Direct2D support, please use ESR 140.0 or higher.


Enterprise︰

    https://support.mozilla.org/kb/firefox-enterprise-146-release-notes


Developer︰

    Firefox now supports ML-KEM for WebRTC, by sending a post-quantum (PQ) key
share during the DTLS 1.3 handshake. ML-KEM is the next-generation public-key
cryptosystem that is believed to be secure against attackers with large
quantum computers.

    Firefox now supports compressed elliptic curve points in WebCrypto. These
reduce the size of public keys by nearly half, saving bandwidth and storage,
while still allowing the full point to be reconstructed mathematically.

    The Skia graphics library has been updated to improve rendering performance
and compatibility.

    Unused CSS custom properties are now hidden by default in the Rule view of
the Inspector. This not only reduces clutter, but in some cases also speeds
up the rendering of the inspector panel.


Web Platform︰

    The @scope rule is now supported, allowing authors to restrict styling to
a subtree of the DOM. This avoids having to write overly-specific selectors.
https://developer.mozilla.org/docs/Web/CSS/@scope

    Firefox now supports the contrast-color() CSS function that takes a color
value and returns a contrasting color. Note that the specification currently
restricts the contrasting color to black or white. This limitation is
expected to be removed in the future. (Learn more)
https://www.w3.org/TR/css-color-5/#contrast-color
https://developer.mozilla.org/docs/Web/CSS/color_value/contrast-color

    Introduced the text-decoration-inset property, which allows authors to
adjust the start and end points of line decorations.
https://drafts.csswg.org/css-text-decor-4/#text-decoration-inset-property

    Firefox now supports the legacy -webkit-fill-available keyword as a value
for the CSS width and height properties. This improves rendering of content
on websites that use this value. This keyword is an alias for the recently
standardized stretch keyword, which is not yet enabled in Firefox.



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