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This article provides information about the changes in Firefox 62 that will affect developers. Firefox 62 is the current Beta version of Firefox, and will ship on September 5, 2018.

Geliştiriciler İçin Değişiklikler

Developer tools

  • The Shape Path Editor is now available by default — see Edit Shape Paths in CSS for more information.
  • You can now split the Rules view out into its own pane, separate from the other tabs on the CSS pane. See Page inspector 3-pane mode for more details.
  • The Grid inspector has updated features, and all new documentation — see CSS Grid Inspector: Examine grid layouts.
  • You now have four options for the location of the Developer Tools. In addition to the default location on the bottom of the window, you can choose to locate the tools on either the left or right sides of the main window or in a separate window (bug 1192642).
  • The Accessibility inspector has had a couple of minor updates:
    • It no longer exposes the help property, which isn't properly implemented in Gecko (bug 1467643).
    • The keyboardShortcut property now correctly exposes any keyboard shortcut available to activate the currently inspected node (bug 1467381).
  • A close button has been added to the split console toolbar.
  • If the option to "Select an iframe as the currently targeted document" is checked, the icon will appear in the toolbar while the Settings tab is displayed, even if the current page doesn't include any iframes (bug 1456069).
  • The Network Monitor's Cookies tab now shows the cookie samesite attribute (bug 1452715).
  • Responsive design mode now works inside container tabs (bug 1306975).
  •  When CORS errors occur and are reported on the console, Firefox now provides a link to the corresponding page in our CORS error documentation (bug 1475391).

Removals

  • The Developer Toolbar/GCLI (accessed with Shift + F2), has been removed from Firefox (bug 1461970).

HTML

Değişiklik olmadı.

CSS

Removals

SVG

Değişiklik olmadı.

JavaScript

Removals

  • The DOMPoint and DOMPointReadOnly constructors no longer support an input parameter of type DOMPointInit; the values of the properties must be specified using the x, y, z, and w parameters (bug 1186265).
  • The URL.createObjectURL() method no longer supports creating object URLs to represent a MediaStream. This capability has been obsolete for some time now, since you can now simply set HTMLMediaElement.srcObject to the MediaStream directly (bug 1454889).

APIs

New APIs

DOM

DOM events

No changes.

Service workers

No changes.

Media, Web Audio, and WebRTC

  • The "media.autoplay.enabled" preference now controls automatic playback of both audio and video media, instead of just video media (bug 1413098).
  • The ChannelSplitterNode has been fixed to correctly default to having 6 channels with the channelInterpretation set to "discrete" and the channelCountMode set to "explicit", as per the specification (bug 1456265).

Removals

HTTP

Removals

Security

No changes.

Plugins

No changes.

Other

No changes.

Changes for add-on developers

API changes

Manifest changes

Theme changes

  • New tab_background_separator property of the theme manifest key enables extensions to change the color of the tab separator (bug 1459455).

Removals

  • Support for unpacked sideloaded extensions has been removed (bug 1385057).
  • The warning about browser_style displayed when temporarily loading an extension for testing is no longer displayed (bug 1404724).

See also

Older versions

Document Tags and Contributors

Contributors to this page: serdaralp
Last updated by: serdaralp,