Available Firefox 71 release.
Major changes:
- The Lockwise password manager has learned to offer autofill on subdomains for the password saved for the main domain.
- Password compromise alerts can now be read by screen readers.
- All major platforms (Linux, macOS, Windows) now use a native MP3 decoder.
- Implemented the ability to work in kiosk mode.
- The about:config service page has been rewritten from XUL to standard web technologies HTML5, CSS and JavaScript, and also adapted (buttons are used instead of context menus) for touch screens. Due to the fact that this is a regular web page, it is possible to use a standard page search, as well as copy several lines at once. Sorting settings by "changed/unchanged" status is no longer supported, they are now forced to be sorted by name.
- The implementation of certificate viewing has also been rewritten. Instead of a separate window from now on new tab is being used and significantly more information is displayed, and copying it is also simplified.
- At the build stage, the ability to disable access to about:config has been added. This will be useful for creators of mobile browsers, where thoughtless changes can easily lead to the browser not working, and since it is impossible to correct the configuration file without superuser rights, the only option is to clear all data and delete the profile.
- Windows created by add-ons now contain the name of the add-on in their title rather than the moz-extension:// identifier.
- Added localizations: Valencian dialect of Catalan language (ca-valencia), Tagalog language (tl) and tongue trike (trs).
- grid-template-columns и grid-template-rows got support subgrid from specification CSS Grid Level 2.
- Added support column span.
- Property clip path acquired path() support.
- A method has appeared Promise.allSettled(), allowing you to wait until each promise in the set is resolved or rejected.
- Added DOM MathML tree and class MathMLElement.
- API partially implemented media session, which allows a web page to tell the operating system metadata about the file being played (such as artist, album and track title, and album art). In turn, the operating system can display this information, for example, on the lock screen, as well as display controls there (pause, stop).
- Support for legacy MathML properties has been discontinued,
- Console: support implemented multiline mode.
- JavaScript Debugger: Enabled variable preview, available event registration and opportunity filtering by event type.
- Network Monitor: Enabled websocket inspector, implemented full text search by body of requests/responses, headers, cookies, and it is also possible to block the loading of certain URLs by specifying templates.
- All code related to WebIDE.
- Windows: enabled support for picture-in-picture mode for video. When you click on the button (appears when you hover over the video, can be disabled by changing the media.videocontrols.picture-in-picture.video-toggle.enabled setting - in this case, PiP is controlled through the player menu), the player moves to the corner of the screen and is displayed on top of other running applications. You can enable PiP on Linux and macOS using the media.videocontrols.picture-in-picture.enabled setting.
Source: linux.org.ru