Firefox 78 is the last major release with support for macOS versions 10.9,
10.10 and 10.11. If you use one of these versions, you’ll be supported
through Firefox ESR (Extended Support Release) 78.x for the coming year.
官方版本79.0预计在 2020年07月28日(美国时间) 台湾时间07月28日~07月29日 更新
更新日志
https://www.mozilla.org/en-US/firefox/78.0/releasenotes/
New︰
The Protections Dashboard includes consolidated reports about tracking
https://tinyurl.com/ycau8y5u
protection, data breaches, and password management. New features let you:
．Track how many breaches you’ve resolved right from the dashboard
．See if any of your saved passwords may have been exposed in a data
breach
To view your dashboard, type about:protections into the address bar, or
select “Protections Dashboard” from the main menu.
Because we know people try to fix problems by reinstalling Firefox when a
simple refresh is more likely to solve the issue, we’ve added a Refresh
https://support.mozilla.org/kb/refresh-firefox-reset-add-ons-and-settings
button to the Uninstaller.
With this release, your screen saver will no longer interrupt WebRTC
calls on Firefox, making conference and video calling in Firefox better.
We’ve rolled out WebRender to Windows users with Intel GPUs, bringing
https://wiki.mozilla.org/Platform/GFX/WebRender_Where
improved graphics performance to an even larger audience.
Firefox 78 is also our Extended Support Release (ESR), where the changes
made over the course of the previous 10 releases will now roll out to our ESR
users. Some of the highlights are:
．Kiosk mode
．Client certificates
．Service Worker and Push APIs are now enabled
．The Block Autoplay feature is enabled
．Picture-in-picture support
．View and manage web certificates in about:certificate
Pocket recommendations, featuring some of the best stories on the web,
https://blog.mozilla.org/?p=12665
will now appear on the Firefox new tab for 100% of our users in the UK. If
you don’t see them, you can turn on Pocket articles in your new tab, follow
these steps.
https://support.mozilla.org/kb/hide-or-display-content-new-tab
Fixed︰
Various security fixes.
https://www.mozilla.org/security/known-vulnerabilities/firefox/#firefox78
We fixed bugs in the search results quality composition and improved
search result texts based on recommendations by our partners.
Changed︰
The minimal system requirements on Linux have been updated. Firefox now
https://www.mozilla.org/firefox/78.0/system-requirements
needs GNU libc 2.17, libstdc++ 4.8.1 and GTK+ 3.14 or newer versions.
As part of our ongoing effort to deprecate obsolete cryptography, we have
disabled all remaining DHE-based TLS ciphersuites by default.
To mitigate web compatibility issues from disabling DHE-based TLS
ciphersuites, Firefox 78 enables two more AES-GCM SHA2-based ciphersuites.
We have disabled TLS 1.0 and TLS 1.1 to improve your website connections.
https://hacks.mozilla.org/2020/02/its-the-boot-for-tls-1-0-and-tls-1-1/
Sites that don't support TLS version 1.2 will now show an error page.
The context menu (accessed by right clicking on a tab) lets you undo
multiple tab closings with a single click and places Close Tabs to the Right
and Close Other Tabs in a submenu.
A number of accessibility improvements have been made with this release.
When using the JAWS screen reader, pressing the down arrow in an HTML
input control with a datalist no longer incorrectly moves the cursor to the
next element after the input control.
Screen readers no longer severely lag or freeze when focusing the
microphone/camera/screen sharing indicator.
Large tables with thousands of rows now load much faster for screen
reader users.
Text input controls with custom styling now correctly show the focus
outline when appropriate.
Screen readers no longer sometimes incorrectly switch to document
browsing mode unexpectedly when the user enters the main Developer Tools
window.
We reduced a number of animations such as tab hover, search bar
expansion, and others to reduce motion for users with migraines and epilepsy.
Enterprise︰
Enable support for client certificates stored on macOS and Windows by
setting the experimental preference security.osclientcerts.autoload to true.
New policies allow you to configure application handlers, disable picture
in picture, and require a master password, which will be renamed to ‘primary
password’ in future releases.
More details in the Firefox for Enterprise 78 release notes
https://support.mozilla.org/kb/firefox-enterprise-78-release-notes
Developer︰
https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/78
DevTools Console now logs uncaught promise errors with much more detailed
names, stacks, and properties, particularly improving JavaScript framework
debugging.
Debugger’s automatic mapping for minified variable names now also works
for Logpoints, which makes debugger of source-mapped projects feel more
https://developer.mozilla.org/docs/Tools/Debugger/Set_a_logpoint
seamless.
The Firefox DevTools’ Network panel now highlights which extension or CORS
restriction blocked a request, so developers can make their sites more
resilient and secure.
New RegExp engine in SpiderMonkey, adding support for the dotAll flag,
https://developer.mozilla.org/docs/Web/JavaScript/Guide/Regular_Expressions
Unicode escape sequences, lookbehind references, and named captures.