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タイトル Pale Moon
URL http://www.palemoon.org/
バージョン 27.4.1   27.4.0   27.3.0   27.2.1   27.2.0   27.1.2   27.1.1   27.1.0   27.0.3   27.0.2   27.0.1  
更新日 2017/08/03
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





2017/08/03 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.

2017/03/19 ver 27.2.0

[DEV] Unstable versions
3rd Party Builds
Archived versions
[DEV] Source code
Pale Moon Sync service
Profile Backup tool
Pale Moon Commander
Pale Moon Tab Groups
Flash Protected Mode tool
Pale Moon Survey results
27.2.0 (2017-03-18)This is a major update to the browser with a focus on back-end improvements and security.
Updated the ICU lib to 58.2 to fix a number of issues.
Added proper control for the user for offline storage for web applications.
Added a check to prevent auto-filled URLs from copying the auto-filled selection to clipboard/primary.
Added the feature to pass a URL to open in a private window from the command-line.
Improved the display of the downloads indicator on the button in bright-text situations.
DOM storage now honors the "3rd party cookie" setting in
that it will not allow 3rd party data to be stored if 3rd party cookies

2017/03/03 ver 27.1.2

27.1.2 (2017-03-03)
This is a small update adding a workaround for potential deadlocks happening in media elements.
27.1.1 (2017-02-21)
This is a stability and bugfix update to the browser.
2009-2017 Moonchild Productions - All rights reserved

2017/02/22 ver 27.1.1

Pale Moon: Release notes
27.1.1 (2017-02-21)This is a stability and bugfix update to the browser.
Implemented a fix in media handling to prevent crashes with
concurrent videos and/or rapidly starting/stopping video playback in
the browser.
Fixed the way the Adobe Flash plugin is detected to prevent
confusion with other plugins that identify themselves as "Flash" (e.g.
Windows: Solved stability issues caused by the release build process, resulting in unexpected behavior (e.g. hangups).
27.1.0 (2017-02-09)
is a major update with lots of development and bugfixes. It also
introduces the so-called "PMkit" modules, our effort to restore
compatibility with Jetpack/SDK extensions and making it possible for
extension developers to convert their SDK extensions with little effort
to a Pale Moon compatible format. For more details please check the PMkit documentation on the developer wiki.
Reworked the media

2017/02/10 ver 27.1.0

[DEV] Unstable versions
Pale Moon for Atom/WinXP
[DEV] Pre-release
27.1.0 (2017-02-09)This
is a major update with lots of development and bugfixes. It also
introduces the so-called "PMkit" modules, our effort to restore
compatibility with Jetpack/SDK extensions and making it possible for
extension developers to convert their SDK extensions with little effort
to a Pale Moon compatible format. For more details please check the PMkit documentation on the developer wiki.
Reworked the media
back-end completely (thanks Travis!) to use FFmpeg (including support
for FFmpeg v3 and MP3 playback) and our own MP4 parser, and no longer
relying on gstreamer on Linux, as well as adding some improvements on
Windows for media parsing and playing.On
Linux, Apple .mov files of the correct type will also be played through
FFmpeg now, for those rare occasions where they are still in use,
considering there is no Quicktime plug-in available on that operating
system.Restored the classic about:config styling.Added a fallback to US-ASCII if the autoconfig UTF-8 conversion fails.Improved cross-compartment wrapper handling when managing a large number of tabs (fixes a performance regression with v27).Changed

2016/12/16 ver 27.0.3

Pale Moon: Release notes
27.0.3 (2016-12-16)This is a bugfix and security update.
Fixed certain network errors not displaying.
Fixed network error page styling.
Fixed the writing of DOM storage data to tabs (should solve
the "tabs not loading their contents" issue when migrating a profile
and some other situations).
Disabled downloadable font unicode-ranges on non-Windows platforms.
Added a Google Fonts user-agent override for non-Windows
platforms so they don't send unicode-ranged composite fonts (Feature
detection? Google apparently still doesn't know what that is).
Re-enabled the reporting of CSS errors to the console by
default to prevent issues with some extensions who rely on this (e.g.
Fixed and updated preferences for location bar suggestions.
Fixed several x64-specific issues in memory allocation code (regression fix).
Fixed timer issues when resuming a computer from stand-by (regression fix).
Fixed a number of branding and textual issues in the browser.

2016/12/03 ver 27.0.2

Pale Moon: Release notes
27.0.2 (2016-12-02)This is a minor update to address usability and security issues:
Enabled Firefox Compatibility mode by default for the useragent string.Unfortunately
too many websites (and especially the big players who should know
better like Google, Apple and Microsoft) still require the "we must pretend to
be Firefox if we want this site to work" status quo to be
maintained, because people still insist on using useragent sniffing to
determine "browser features", or even worse, discriminate against free
choice of browser by flat-out refusing service (I'm looking at you,
banking industry and cloud services!) when visiting websites just because companies don't
want to provide assistance to any but users on the main 3.
HTML offers plenty of ways to do proper feature detection; site owners should use them.
Seriously people, it was a bad idea 20 years ago, and it's a worse idea in 2016.
The built-in devtools are back, and with a facelift!
Thanks to some consistent community help, the built-in devtools, sorely
missed by a number of our users, are back. They've received a code and
style update and should be fully functional on the new platform. This
was originally planned for 27.1, but it was decided to include this as
soon as possible, not in the least to assist extension developers in

2016/11/29 ver 27.0.1

Pale Moon: Release notes
27.0.1 (2016-11-28)This is a bugfix release for some of the issues that popped up with the new milestone.
Fixed removal of distribution/bundles/ copies of status bar code and ruby annotations code.This should clean up everything on install/upgrade that currently causes double code to create intermittent/odd behavior.
Backed out some media back-end changes to fix MSE playback on Twitch.tv and other similar sites.
Disabled pop-up network status in full screen by default (since video detection is rather iffy at the moment).
Fixed a regression causing the "reset profile" button to not appear in about:support on the default profile.
Worked around bad Netflix interface changes - it will now use a more compatible web UI.
Please note that these Netflix changes were unrelated to the actual release of Pale Moon (26.5 is also affected).
Aligned base status bar colors with default prefs.
Fixed status bar options not being remembered.
an override for Amazon Prime videos so they won't stop us at the front
door any longer when not using the Firefox Compatibility user agent
Re-applied proper branding text to in-app licensing.
27.0.0 (2016-11-22)
After about 8 months of development, we now have a new milestone
release with literally too many changes to list even concisely. These