官方版本139.0預計在 2025年05月27日(美國時間) 台灣時間05月27日~05月28日 更新
138.0.4 Release Note
https://www.mozilla.org/en-US/firefox/138.0.4/releasenotes/
Fixed︰
Security fixes.
https://www.mozilla.org/en-US/security/advisories/mfsa2025-36/
138.0.3 Release Note (對！直接跳.0.3)
https://www.mozilla.org/en-US/firefox/138.0.3/releasenotes/
Fixed︰
Fixed a crash that could occur when viewing websites that use WebGL. (Bug
1961191)
https://bugzilla.mozilla.org/show_bug.cgi?id=1961191
On Linux, fixed an issue where video playback would appear washed-out on
Wayland when HDR support was unavailable. (Bug 1961610)
https://bugzilla.mozilla.org/show_bug.cgi?id=1961610
Fixed an issue where the "Match Case" shortcut Alt+C in the find-in-page
toolbar did not toggle the checkbox as expected. (Bug 1952611)
https://bugzilla.mozilla.org/show_bug.cgi?id=1952611
Fixed an issue where the browser could repeatedly crash when certain SVG
effects (like blur or drop shadow) were applied to very small areas. (Bug
1924241)
https://bugzilla.mozilla.org/show_bug.cgi?id=1924241
138.0.1 Release Note
https://www.mozilla.org/en-US/firefox/138.0.1/releasenotes/
Fixed︰
Fixed an issue which caused a blank page to be shown for Home and New Tab
pages for some users. (Bug 1963537)
https://bugzilla.mozilla.org/show_bug.cgi?id=1963537
Added a workaround for a bug in outlook.office.com/outlook.live.com where
attachment filenames are incorrectly prefixed with UTF-8 when saved. (Bug
1961710)
http://bugzilla.mozilla.org/show_bug.cgi?id=1961710
138.0 Release Note
https://www.mozilla.org/en-US/firefox/138.0/releasenotes/
New︰
Profile management helps protect your privacy and stay focused by
separating your online life into distinct profiles — for work, school,
vacation planning, or whatever you choose. You can now name your profiles and
customize them with avatars and color themes for easy recognition, then
quickly switch between them — all while keeping bookmarks, tabs, and
browsing history completely separate.
https://i.imgur.com/D9zBRSi.png
https://support.mozilla.org/kb/profile-management
Users in the United States can now trigger weather suggestions in the
address bar! Simply type a weather-related term or a city name, and view the
result directly in the address bar dropdown.
https://i.imgur.com/4Rq8puQ.png
Currently available in: United States
Tab Groups, a new way to organize and take control of your tabs, is now
available to almost all users worldwide. You can create a group by dragging
one tab onto another, pausing, then dropping it. You can also now reposition
a tab group on the tab bar by dragging it.
*昨晚看應該沒有這一段 所以上色！
Firefox on Windows 11 now uses acrylic-style menus for popup windows, which
better match the operating system’s aesthetic.
You can now copy links from background tabs using the tabstrip context menu
on MacOS and Linux.
Fixed︰
Various security fixes.
https://www.mozilla.org/security/advisories/mfsa2025-28
Changed︰
Improved the address and credit card autofill experience to better handle
forms that update dynamically as users input information. Autofill now
correctly fills newly revealed fields—such as those shown after selecting a
country.
https://support.mozilla.org/kb/credit-card-autofill
Rededicated previous color settings to Contrast Control settings. (Learn
more)
https://blog.monotonous.org/2025/03/06/New-Contrast-Control-Settings/
Enterprise︰
https://support.mozilla.org/kb/firefox-enterprise-138-release-notes
Developer︰
Added support for the import map integrity field, allowing you to ensure
the integrity of dynamically or statically imported modules.
https://mzl.la/4jHtlf6
Implemented support for Error.isError, enabling brand checks to determine
whether an object is an instance of Error. (Learn more)
https://mzl.la/3ET0tkZ
Added support for the error.captureStackTrace extension to improve
compatibility with other browsers. (Learn more)
http://github.com/tc39/proposal-error-capturestacktrace
A new column has been added to the Network panel to display the full path
of the request URL. This enhancement makes helps developers quickly view and
analyze complete request paths.
Firefox now applies a uniform user agent (UA) style to <h1> elements,
regardless of whether they are used inside <article>, <aside>, <nav>, or
<section>. (Learn more)
https://mzl.la/4iIlblE
Web Platform︰
Added support for Import Attributes, allowing developers to specify
additional metadata when importing modules.
https://mzl.la/3EvW33z
Applications can now set their preferred degradation method to be used
when the configured frame rate and resolution cannot be maintained. (Learn
more)
https://w3c.github.io/mst-content-hint/#degradation-preference-when-encoding
Firefox now enables the cache directive for the Clear-Site-Data header,
allowing websites to clear the network cache. This gives websites more
control over stored data, such as clearing the cache during logout to help
mitigate privacy risks. (Learn more)
https://www.w3.org/TR/clear-site-data/#clear-cache
https://developer.mozilla.org/docs/Web/HTTP/Reference/Headers/Clear-Site-Data
Unresolved︰
Due to recent changes in Chrome on Windows, some users might find that the
Firefox migration wizard no longer successfully imports passwords from Chrome
or Chrome-based browsers. As a workaround, you can export your passwords as a
CSV file from Chrome and then import them into Firefox using either the
migration wizard or the Firefox password manager.