- Fixed external programs launching in the background when clicking a link from inside Firefox to launch them (bug 1570845)
- Usability improvements to the Add-ons Manager for users with screen readers (bug 1567600)
- Fixed the Captive Portal notification bar not being dismissable in some situations after login is complete (bug 1578633)
- Fixed the maximum size of fonts in Reader Mode when zoomed (bug 1578454)
- Fixed missing stacks in the Developer Tools Performance section (bug 1578354)
- Security and stability fixes
- Enhanced Tracking Protection (ETP) rolls out stronger privacy protections:
The default standard setting for this feature now blocks third-party tracking cookies and cryptominers.
The optional strict setting blocks fingerprinters as well as the items blocked in the standard setting.
- The Block Autoplay feature is enhanced to give users the option to block any video that automatically starts playing, not just those that automatically play with sound.
- For our users in the US or using the en-US browser, we are shipping a new “New Tab” page experience that connects you to the best of Pocket’s content.
- Support for the Web Authentication HmacSecret extension via Windows Hello now comes with this release, for versions of Windows 10 May 2019 or newer, enabling more passwordless experiences on the web.
- Support for receiving multiple video codecs with this release makes it easier for WebRTC conferencing services to mix video from different clients.
- For our users on Windows 10, you’ll see performance and UI improvements:
Firefox will give Windows hints to appropriately set content process priority levels, meaning more processor time spent on the tasks you're actively working on, and less processor time spent on things in the background (with the exception of video and audio playback).
For our existing Windows 10 users, you can easily find and launch Firefox from a shortcut on the Win10 taskbar.
- For our users on macOS, battery life and download UI are both improved:
macOS users on dual-graphics-card machines (like MacBook Pro) will switch back to the low-power GPU more aggressively, saving battery life.
Finder on macOS now displays download progress for files being downloaded.
- As previously announced in the Plugin Roadmap for Firefox, the "Always Activate" option for Flash plugin content has been removed. Firefox will now always ask for user permission before activating Flash content on a website.
- With the deprecation of Adobe Flash Player, there is no longer a need to identify users on 32-bit version of the Firefox browser on 64-bit version operating systems reducing user agent fingerprinting factors providing greater level of privacy to our users as well as improving the experience of downloading other apps.
- Firefox no longer loads userChrome.css or userContent.css by default improving start-up performance. Users who wish to customize Firefox by using these files can set the toolkit.legacyUserProfileCustomizations.stylesheets preference to true to restore this ability.
- For Enterprise system administrators that manage macOS computers, we begin shipping a Mozilla signed PKG installer to simplify your deployments.
- For our mobile web developers, we have migrated remote debugging from the old WebIDE into a re-designed about:debugging, making debugging GeckoView on remote devices via USB rock solid.
- The network panel will now show blocked resources to allow developers to best understand the impact of content blocking and ad blocking extensions given our ongoing expansion of Enhanced Tracking Protection to all users with this release.
- The new event listener breakpoint feature allows developers to pause on a host of different event types, whether it be related to animations, DOM, media, mouse, touch, worker, and many other event types.
- Firefox Developer Tools now offers an audit for the presence of text alternatives for non-text content, the a11y panel checks toolbar has been augmented to better help developers adhere to WCAG Guideline 1.1.
- Fixed a bug causing some special characters to be cut off from the end of the search terms when searching from the URL bar (bug 1560228)
- Allow fonts to be loaded via file:// URLs when opening a page locally (bug 1565942)
- Printing emails from the Outlook web app no longer prints only the header and footer (bug 1567105)
- Fixed a bug causing some images not to be displayed on reload, including on Google Maps (bug 1565542)
- Fixed an error when starting external applications configured as URI handlers (bug 1567614)
- Security fixes
- macOS releases are now signed by the Apple notary service, allowing Firefox to properly run on macOS 10.15 Beta releases
- Fixed missing Full Screen button when watching videos in full screen mode on HBO GO (bug 1562837)
- Fixed a bug causing incorrect messages to appear for some locales when sites try to request the use of the Storage Access API (bug 1558503)
- Users in Russian regions may have their default search engine changed (bug 1565315)
- Built-in search engines in some locales do not function correctly (bug 1565779)
- Dark mode in reader view expands so that windows are also dark on the controls, sidebars and toolbars.
- New reporting feature in about:addons allows you to report security and performance issues with extensions and themes.
- Redesigned extensions dashboard in about:addons provides easy access to information about your extensions, including data and settings access required by each extension.
- Find high quality, secure extensions via the Recommended Extensions program in about:addons, which now displays user count and ratings for each extension.
"Recommended” badges for these extensions also appear on AMO.
More extensions will be added over time.
- Cryptomining and fingerprinting protections are added to strict content blocking settings in Privacy & Security preferences.
- WebRender will roll out to Windows 10 users with AMD graphics cards.
- Windows Background Intelligent Transfer Service (BITS) update download support, which allows Firefox update downloads to continue when Firefox is closed.
- Various security fixes
- Local files can no longer access other files in the same directory.
- New tab page configuration and disabling
- Local file links
- Download behavior
- Search suggestions
- Managed storage for using policies in Webextensions
- Extension whitelisting and blacklisting by ID and website
- A subset of commonly used Firefox preferences
- Firefox Developer Tools now offers a full page color contrast audit that identifies all elements on a page that fail color contrast checks.
- Added about:compat, where website-specific workarounds are listed and may be toggled.
These workarounds are meant as temporary fixes for various forms of website breakage for Firefox, while the website fixes them in due time.
With about:compat, it is now easy to see all of the workarounds that are active in Firefox, and easy for website developers to disable a given workaround for testing purposes.
- Introduces CSS Scroll Snap module that enforces scroll snap positions.
- Proxy authentication dialog box repeatedly pops up asking to authenticate after upgrading to Firefox 67 (bug 1548804)
- Pearson MyCloud breaks if FIDO U2F is not Chrome's implementation (bug 1551282)
- Starting in safe mode on Linux or macOS causes Firefox to think on the subsequent launch that the profile is too recent to be used with this version of Firefox (bug 1556612)
- Linux distribution users can't easily install/use additional/different languages using the built-in preferences UI (bug 1554744)
- Developer tools users can't copy the href/src content from various HTML tags via the context menu in the Inspector markup view (bug 1552275)
- Custom home page is broken with clearing data on shutdown settings applied (bug 1554167)
- Performance-regression for eclipse RAP based applications (bug 1555962)
- macOS 10.15 crash fix (bug 1556076)
- Can't start two downloads in parallel via a download anymore (bug 1542912)