[-Fx-] Firefox 153.0 Release
官方版本154.0預計在 2026年08月18日(美國時間) 台灣時間08月18日~08月19日 更新
153.0.3 Release Note
https://www.mozilla.org/en-US/firefox/153.0.3/releasenotes/
New︰
Smart Window includes several enhancements:
https://www.firefox.com/smart-window
。The suggestion list now shows more results, making it easier to find
history and switch to open tabs. (Bug 2019042)
https://bugzilla.mozilla.org/show_bug.cgi?id=2019042
。The assistant can now answer questions directly using web search
results from Exa, instead of handing off to a search engine. (Bug 2046183
,Bug 2044385)
https://bugzilla.mozilla.org/show_bug.cgi?id=2046183
https://bugzilla.mozilla.org/show_bug.cgi?id=2044385
Fixed︰
Fixed audio and video failing to play, or hanging when seeking, on websites
that load media from a Blob URL. (Bug 2056444)
https://bugzilla.mozilla.org/show_bug.cgi?id=2056444
Fixed Internet shortcuts dragged from Firefox to the desktop being marked
as untrusted on Windows, which caused a security warning every time they were
opened. (Bug 2056865)
https://bugzilla.mozilla.org/show_bug.cgi?id=2056865
Fixed the Bookmarks, History, and other sidebars failing to open when the
sidebar is hidden and the password manager has been turned off by an
enterprise policy. (Bug 2056857)
https://bugzilla.mozilla.org/show_bug.cgi?id=2056857
Fixed a Mozilla VPN upgrade offer appearing for people in regions where
Mozilla VPN is not sold. (Bug 2058264)
https://bugzilla.mozilla.org/show_bug.cgi?id=2058264
Fixed frequent Inspector crashes in the Developer Tools on pages where an
extension content script had added event listeners. (Bug 2042101)
https://bugzilla.mozilla.org/show_bug.cgi?id=2042101
Fixed a rare case on Windows where starting Firefox while a partial update
was still being applied could leave the installation broken and unable to
start. (Bug 2058197, Bug 2058594)
https://bugzilla.mozilla.org/show_bug.cgi?id=2058197
https://bugzilla.mozilla.org/show_bug.cgi?id=2058594
153.0.1 Release Note
https://www.mozilla.org/en-US/firefox/153.0.1/releasenotes/
Fixed︰
Addressed a startup crash on Windows that could occur after updating
Firefox, when some of the application's internal files could not be loaded.
Firefox should now start in these cases, although parts of the interface may
not display correctly until a further update completes (Bug 2056926).
https://bugzilla.mozilla.org/show_bug.cgi?id=2056926
Fixed audio playing silently on some music and audio streaming sites after
pausing and resuming playback (Bug 2053586).
https://bugzilla.mozilla.org/show_bug.cgi?id=2053586
Fixed the New Tab page background flashing a few seconds after the page
loaded when a custom wallpaper was in use (Bug 2056650).
https://bugzilla.mozilla.org/show_bug.cgi?id=2056650
Fixed a crash that could occur when a page loaded a frame using a
javascript: address (Bug 2054485).
https://bugzilla.mozilla.org/show_bug.cgi?id=2054485
Fixed a crash that could occur while typing text in an editable area of a
page (Bug 2053867).
https://bugzilla.mozilla.org/show_bug.cgi?id=2053867
Fixed a search engine you had already installed yourself being labeled as
"New" when Firefox later started offering the same engine (Bug 2053710).
https://bugzilla.mozilla.org/show_bug.cgi?id=2053710
Improved pointer lock, used by games and other immersive web content, so
that the mouse pointer is less likely to escape the Firefox window (Bug 1255338
, Bug 2040628).
https://bugzilla.mozilla.org/show_bug.cgi?id=1255338
https://bugzilla.mozilla.org/show_bug.cgi?id=2040628
Fixed an issue in the Inspector's Rules view where pseudo-elements could
only be expanded once per selected element (Bug 2054525).
https://bugzilla.mozilla.org/show_bug.cgi?id=2054525
Fixed View Page Source failing to load blob: documents (Bug 2054428).
https://bugzilla.mozilla.org/show_bug.cgi?id=2054428
Fixed View Page Source timing out on documents that inherit their origin,
such as frames using the srcdoc attribute (Bug 2054487).
https://bugzilla.mozilla.org/show_bug.cgi?id=2054487
Unresolved︰
Some Windows users may experience a crash on startup after updating, caused
by an incomplete update leaving the Firefox installation in an inconsistent
state (Bug 1681745). If you are affected, downloading Firefox from
firefox.com and installing it over your existing installation will repair it.
Your bookmarks, passwords and other data are stored separately and will not
be affected.
https://bugzilla.mozilla.org/show_bug.cgi?id=1681745
153.0 Release Note
https://www.mozilla.org/en-US/firefox/153.0/releasenotes/
New︰
High Dynamic Range (HDR) video playback is now available on Windows - this
feature needs HDR mode enabled for the display in Windows Settings - Display.
Laptop displays that only offer "HDR video streaming" are not supported at
this time. Some videos recorded on phones in certain orientations are
currently not shown as HDR.
Containers let you keep separate parts of your online life (work, shopping,
personal, banking) logged into different accounts in the same browser window,
but keep your cookies and ad tracking isolated inside each container.
https://support.mozilla.org/kb/how-use-firefox-containers
Share any open page with a QR code. Right-click a tab, select Share >
Generate QR Code. Great for posters, invitations, banners, and other printed
materials.
https://i.meee.com.tw/WD9bbi6.png

It is now possible to merge multiple PDFs by dragging a PDF into the PDF
sidebar.
It is now possible to add images as new pages within PDFs using the Firefox
PDF editor.
Quickly pick and copy a color from any page by typing "pick color", "color
picker", or "eyedropper" in the address bar and selecting the "Pick a color"
quick action.
https://i.meee.com.tw/dtUscW5.png

Added support for Apple's system-wide full-screen keyboard command
(Globe-F).
Firefox now verifies and displays Qualified Website Authentication
Certificates (QWACs) in accordance with eIDAS regulations.
https://en.wikipedia.org/wiki/Qualified_website_authentication_certificate
Added improved support for videos with overlays so users can more easily
access video actions from context menus.
Firefox now highlights the location permission icon in red whenever a website
has access to your location. The permission icon is also now visible on
search results pages where it was previously hidden.
https://i.meee.com.tw/NGD5Ur3.png

Smart Window:
https://www.firefox.com/smart-window
。See and choose AI models directly from the Smart Window assistant.
。New Tab now includes a familiar address bar for typing websites and
searching the web.
https://i.meee.com.tw/MnhRylY.png

Firefox Labs︰
Firefox Labs can now be opened quickly by typing "labs" or "experiment" in
the address bar and selecting the Open Firefox Labs quick action.
https://i.meee.com.tw/dH2QH6P.png

Firefox now offers experimental support for the new JPEG XL image format,
which generally provides better compression than WebP, JPEG, PNG, and GIF and
is designed to supersede them. You can enable it from the Firefox Labs panel
in Settings.
https://jpegxl.info/
Fixed︰
Various security fixes.
https://www.mozilla.org/security/advisories/mfsa2026-68/
Changed︰
Extensions can no longer access local files by default. Users can grant or
revoke this access via the new "Access local files on your computer"
permission, separate from "Access your data for all websites".
Local Network Access restrictions are now enabled by default for all users.
Firefox requires websites to request permission before connecting to devices
on your local network or to apps and services on your device.
Outdated cookie settings have been removed from the Settings UI. Users
still in that mode should switch to default behavior "Isolate cross-site
cookies". More information
https://groups.google.com/a/mozilla.org/g/firefox-dev/c/dXvMLkzyFqM
Enterprise︰
https://support.mozilla.org/kb/firefox-enterprise-153-release-notes
Developer︰
Developer Information
https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/153
A new "Local Mode" setting in the options panel allows developers to load
local directories via custom origins. This simplifies testing for APIs that
do not function over standard file:// URLs, removing the need to run a local
web server. Multiple directory mappings are supported.
Web Platform︰
Firefox now supports a limited subset of the non-standard
::-webkit-scrollbar pseudo-element to improve web compatibility:
。Rules with non-zero width/height disable overlay scrollbars for the
affected container.
。display: none on ::-webkit-scrollbar behaves like scrollbar-width: none,
hiding the scrollbar.
。@supports selector(::-webkit-scrollbar) now evaluates to true.
。Full styling capabilities (colors, border-radius, etc.) are intentionally
not supported.
The vertical-align property was converted into a shorthand for
baseline-source, alignment-baseline, and baseline-shift in Firefox 149. Now,
alignment-baseline supports the new keywords alphabetic, ideographic,
central, mathematical, and hanging, extending the variety of baselines to
choose for alignment.
https://mzl.la/4yzc8MP
Implemented the new popover=hint spec, which removes a series of
inconsistent and unexpected behaviors.
https://github.com/whatwg/html/issues/12304
The circle() and ellipse() functions accept two new keywords closest-corner
and farthest-corner for their radial size.
https://mzl.la/4fn1mR1
https://mzl.la/4fwubdX
The newly added Error.stackTraceLimit property allows to set the maximal
depth of the captured JavaScript error stack as a performance optimization.
https://mzl.la/4bVBQRY
Developers can now use the text import attribute to import text files using
the module system.
https://mzl.la/4bzEWuM
The Picture In Picture API exposes a way for web developers to make use of
user agent Picture-In-Picture functionality.
https://developer.mozilla.org/docs/Web/API/Picture-in-Picture_API
The Intl.LocaleInfo proposal adds the ability to query Locale information,
such as week data (first day in a week, weekend start day, weekend end day),
text direction and hour cycle used in the Locale.
https://mzl.la/4pxxOoE
The MediaCapabilities.decodingInfo() and MediaCapabilities.encodingInfo()
methods now accept the "webrtc" configuration type. This allows a site to
query whether a given audio or video configuration can be decoded or encoded
for WebRTC and whether doing so will be smooth and/or powerEfficient.
--
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