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タイトル Pale Moon
URL http://www.palemoon.org/
バージョン 27.6.2   27.6.1   27.6.0   27.5.1   27.5.0   27.4.2   27.4.1   27.4.0   27.3.0   27.2.1  
更新日 2017/11/29
追加日 2013/08/17
種別 フリーソフト
説明 Firefoxを独自ビルドし高速化したもの。


M screenshot1





2017/11/29 ver 27.6.2

Basilisk homepage
27.6.2 (2017-11-28)
This is a security and minor bugfix update to the browser.
This will most likely be the last update for 2017, with the holidays
not far away.
Implemented the concept of so-called "cookie-averse
document objects" which is a security&privacy measure that blocks
certain web content from setting cookies. This mitigates
cookie-injection, which might help against "hidden" cookie tracking.
Mitigated some domain name spoofing through IDN by using
dotless-i and dotless-j with accents. (CVE-2017-7832)
Pale Moon will display these kinds of spoofed domains in punycode now
in the actual address bar.
Please note that the identity panel will always be able to help you on
secure sites when IDNs are in use to notice potential spoofing, as
opposed to relying on detection algorithms in the URL itself. As such,
some other issues like CVE-2017-7833 are already mitigated by us.
Fixed an issue with mixed-content blocking. (CVE-2017-7835)

2017/11/15 ver 27.6.1

27.6.1 (2017-11-15)
This is a minor bugfix release to address some pressing issues people
have reported.
Fixed a regression with new windows (opening two windows
from the command-line or file association, focus issues on new windows,
not loading the home page in a new window, etc.)
Aligned XHR with the currect spec to allow withCredentials.
Fixed an input element focus issue within handlers.
Fixed the processing of all-padding HTTP/2 frames to
prevent rare HTTP/2 hangups.
Updated CitiBank override to work around their login issues.
Updated Netflix override to a community-supplied one that
seems to satisfy their arbitrary restrictions better.

2017/11/08 ver 27.6.0

27.6.0 (2017-11-07)
This is a major development update.
Dropped support for Direct2D 1.0 to avoid font rendering
issues. Windows installations not capable of using Direct2D 1.1 will
now fall back to software rendering. As a result, fonts may look
different from this version onwards if you are on Windows Vista or
Windows 7. Users on Windows 7 affected by this should install the Platform Update to re-enable Direct2D.
Updated the Brotli decoder library, and enabled support for
Brotli HTTP content-encoding by default.
Added notifications to inform users about WebExtensions not
being supported if they try to install them (as opposed to "extension
is corrupt")
Added a number of DOM childNode convenience functions. This
should fix some lazy-loading frameworks.
(enjoy your LOLcats again!)
Changed automatic updates over to the new infrastructure.
Added extra proxy settings in Options, covering DNS lookups
through SOCKS v5 and automatic proxy authentication with known

2017/10/10 ver 27.5.1

Pale Moon: Release notes
27.5.1 (2017-10-10)
This is a security and stability update to the browser, as well as
fixing some issues users have indicated.
Changed the default Windows 10 styling when no accent color
is aplied to black-on-white.
Changed the theme styling on Windows 10 when the system
window frame is used (menu bar enabled) to use the window manager
background directly, preventing visual lag updating the window color
when it changes.
Updated user agent overrides for DropBox, YouTube and
Yahoo to work around user agent sniffing issues.
Fixed a crash in the media subsystem.
Fixed a regression where video playback hardware
acceleration was disabled incorrectly on some systems.
Security fixes:
Updated libhyphen to the latest upstream code to fix a
security issue.

2017/09/26 ver 27.5.0

Pale Moon: Release notes
27.5.0 (2017-09-26)
This is a major update furthering general development of the browser.
User interface:
Added a menu option to restart the browser.
Added Windows-specific CSS parameters and queries for the
use of the system accent color. Added are parameters -moz-win-accentcolor
and -moz-win-accentcolortext, and the media query -moz-win-accentcolor-applies
to know if Windows is actively using an accent color.
Changed Windows' browser CSS sheet ot use variables
of hard-coding colors, simplifying its style and making it more
flexible. Further cleaned up the Windows 10 specific browser style.
Changed the theme on Windows 10 to use the new accent
colors and improve O.S. consistency.
Fixed some general inconsistencies in the Windows theme
on all Windows operating systems.
Updated Windows widgets to be able to pick up Windows 10

2017/08/29 ver

Pale Moon: Release notes (2017-08-28)
This is an out-of-band update for the portable version of the browser
only (Windows).
This fixes a few issues in the portable shell regarding backups and
To update, please follow the recommended update procedure listed on the
Pale Moon Portable page.
27.4.2 (2017-08-22)
This is a small update to address some security and stability issues.
Fixed a number of crashes.
Enabled the opt-in debugging feature to log SSL keys to a
file in all builds.
Added a fix for TLS 1.3 handshakes causing a browser
Handshakes should be considerably faster now and no longer
stall in the wrong circumstances.
Security fixes:

2017/08/22 ver 27.4.2

Pale Moon: Release notes
27.4.2 (2017-08-22)
This is a small update to address some security and stability issues.
Fixed a number of crashes.
Enabled the opt-in debugging feature to log SSL keys to a
file in all builds.
Added a fix for TLS 1.3 handshakes causing a browser
Handshakes should be considerably faster now and no longer
stall in the wrong circumstances.
Security fixes:
Updated NSPR to 4.15.
Updated NSS to 3.31.1.
Fixed a DoS issue using overly long Username in URL scheme
Fixed an issue where (cross domain) iframes could break
scope (CVE-2017-7787)
Fixed an issue in WindowsDllDetourPatcher (CVE-2017-7804)

2017/08/03 ver 27.4.1

27.4.1 (2017-08-03)
This is a small update to address some media and web compatibility
Fixed an issue where media playback would not use hardware
acceleration properly when using MSE.
This would cause high CPU usage and/or choppy playback for HD video on
e.g. YouTube.
Fixed ES6 iterator chains to be spec-compliant.
Fixed ES6 vector append calls and some related memory leaks.
Added a workaround to reduce the likelihood of a potential
rare (timing-critical) crash.

2017/07/13 ver 27.4.0

27.4.0 (2017-07-12)
This is a major update to straighten out most of the media streaming
issues, as well as adding the necessary enhancements, bugfixes and
security fixes to the browser.
Completely re-worked the Media Source Extensions code to
make it spec compliant, and asynchronous as per specification for MSE
with MP4. This should fix playback problems on YouTube, Twitch, Vimeo
and other sites that previously had some issues. A massive thank you to
Travis for his tireless work on making this happen!
Please note that MSE+WebM (disabled by default) is not using this new
code yet (planned for the next release), and as such there is a
temporary set of things to keep in mind if you don't use default
If you have previously enabled MSE+WebM, this setting
will be reset when you update to avoid conflicting settings with the
updated MSE code.
We've added an extra setting in Options to disable the
updated MSE code (asynchronous use) in case you need to use WebM or are

2017/04/28 ver 27.3.0

27.3.0 (2017-04-28)
A major development update. Many things have changed in the media
back-end, but please understand that some things are still a work in
progress, and you may still encounter some html5 video playback issues
with MSE.
Fixed up, checked and enabled vertical text writing modes!
Pale Moon will now be able to display vertical, right-to-left script.
Added the option to reset non-default profiles.
Fixed various issues in the WebP image decoder.
Added internally-supported document types to allowed <embed>
Fixed locale selection in ICU after update to ICU58.
(Note: Pale
Moon uses the system locale for date formatting, not the browser locale)
Re-implemented the previous spellchecker dictionary logic
(allow user override of document/element language, improve logic and
make it unambiguous).
Ongoing fixes for the MP4 parser and MSE.

2017/03/24 ver 27.2.1

Pale Moon: Release notes
27.2.1 (2017-03-24)
This is a small update to fix some stability and usability issues.
Fixed an issue with planar alpha handling (transparency)
when drawing JXR images.
Fixed a crash related to a change JavaScript array handling
introduced in 27.2.0.
This became apparent with the pentadactyl extension, but could happen
in other situations as well.
Fixed a crash when opening ridiculously large images with
HQ scaling enabled (default).
Pale Moon will now only apply HQ scaling for images within reasonable
limits (64 Mpix or smaller). Images larger than that may not display
properly when zooming in, or may not display at all, even scaled down
(e.g. >256 Mpix large) and show a "broken image" placeholder
instead; please use dedicated image viewer applications for those kinds
of images; it is outside the scope of a web browser to handle such
large images.