作者:
rick (可惜沒如果)
2025-05-27 21:54:16官方版本140.0預計在 2025年06月24日(美國時間) 台灣時間06月24日~06月25日 更新
139.0.4 Release Note
https://www.mozilla.org/en-US/firefox/139.0.4/releasenotes/
Fixed︰
Fixed Firefox freezing when switching between apps or opening certain
panels within the browser. (Bug 1969253 & Bug 1969346)
https://bugzilla.mozilla.org/show_bug.cgi?id=1969253
https://bugzilla.mozilla.org/show_bug.cgi?id=1969346
Fixed difficult selection of drop-down menu options in the Firefox
preferences page when selected via the in-page search. (Bug 1968949)
https://bugzilla.mozilla.org/show_bug.cgi?id=1968949
Fixed various selection issues when triple-clicking text in some
situations. (Bug 1969100 & Bug 1969432)
https://bugzilla.mozilla.org/show_bug.cgi?id=1969100
https://bugzilla.mozilla.org/show_bug.cgi?id=1969432
Fixed an incorrect filename being used when setting an image as the
desktop wallpaper on Windows. (Bug 1969793)
https://bugzilla.mozilla.org/show_bug.cgi?id=1969793
Various security fixes.
https://www.mozilla.org/security/advisories/mfsa2025-47
139.0.1 Release Note
https://www.mozilla.org/en-US/firefox/139.0.1/releasenotes/
Fixed︰
Fixed graphics corruption with certain NVIDIA graphics adapters and
multiple monitors running at mixed refresh rates after updating to Firefox
139. (Bug 1968876)
https://bugzilla.mozilla.org/show_bug.cgi?id=1968876
139.0 Release Note
https://www.mozilla.org/en-US/firefox/139.0/releasenotes/
New︰
By popular request, Full-Page Translations are now available within Firefox
extension pages that start with the moz-extension:// URL scheme.
https://mzl.la/4jkFJkc
https://i.meee.com.tw/bcXqbT2.png
The New Tab custom wallpaper (and colors) option is now available! Your own
image can be uploaded as your New Tab wallpaper or any custom color can be
selected - from the brightest pink to dark gray. This feature will be rolling
out gradually to new users and can also be enabled immediately via Firefox
Labs. Additionally, new Wallpaper images and a new Celestial category have
also been added.
https://is.gd/46WCcN
https://i.meee.com.tw/ao7BF5d.png
https://i.meee.com.tw/Vx28eFO.png
Link Previews is currently available as an experimental feature which can
be enabled via Firefox Labs in the Firefox settings. After enabling, use the
Alt+Shift keyboard shortcut when hovering over a link to see the previews in
action!
https://mzl.la/3H7hI31
https://is.gd/46WCcN
https://i.meee.com.tw/EBNSEnM.png
Fixed︰
PNG images with transparency now keep their transparency when pasted into
Firefox.
The upload performance of HTTP/3 has been significantly improved,
particularly on resumed connections (QUIC 0-RTT) and high-bandwidth and
high-delay connections.
Various security fixes.
https://www.mozilla.org/security/advisories/mfsa2025-42
Changed︰
Due to recent changes in how Chrome encrypts user data on Windows, the
Firefox migration wizard can no longer directly import payment methods or
passwords from Chrome. However, users can still export passwords from Chrome
to a CSV file and then import them into Firefox using the migration wizard or
the password manager.
The Review Checker feature is shutting down and will no longer be
available after June 10, 2025.
https://blog.mozilla.org/mozilla/building-whats-next/
Enterprise︰
https://support.mozilla.org/kb/firefox-enterprise-139-release-notes
Developer︰
https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/139
Based on user requests from both Mozilla Connect and Stack Overflow, the
filter setting in the Network panel is now preserved across DevTools Toolbox
sessions.
The Debugger's directory root is now scoped to the specific domain where it
was set, which aligns with typical usage and avoids applying it across
unrelated domains. This builds on previous improvements such as a redesigned
UI and easier removal of the root setting. Setting a directory root updates
the Source List to show only the selected directory and its children.
https://mzl.la/43ellN6
The appearance of the paused line in the Debugger has been refined for
better visibility, especially in high contrast mode.
Web Platform︰
The Temporal proposal, a better version of Date, is now enabled by
default in Firefox.
https://spidermonkey.dev/blog/2025/04/11/shipping-temporal.html
Timer throttling for Workers is now supported.
Closed <details> elements are now searchable and can be automatically
expanded if found via find-in-page.
Firefox now supports the hidden=until-found attribute, allowing content
to be found via find-in-page when it's otherwise hidden by default.
window.getSelection().toString() now correctly returns the text
serialization when text is selected in a text control, improving
cross-browser interoperability on some sites.
Added support for the WebAuthn largeBlob extension.
https://github.com/w3c/webauthn/wiki/Explainer:-WebAuthn-Large-Blob-Extension
Added support for requestClose() to HTMLDialogElement.
The built-in editor for contenteditable and designMode now handles
collapsible white-space(s) before block boundaries and white-space sequences
between visible content more consistently with Chrome. As a result, Gecko no
longer inserts a padding <br> element after white-space before a block
boundary, aligning behavior with other browsers.