Mozilla Firefox 36.0 Beta 2 发布

Mozilla今天将Mozilla Firefox 36.0 Beta送上了FTP服务器，新版采用Gecko 36作为内核，需要注意的是目前Firefox 36 Beta版分支还没有出现Windows 64位版本（从nightly版本上看目前性能依然没有调整到良好状态，预计Firefox 37会发展出稳定的产品），如有需要尝试的可以选用Developer Edition版本。预计正式版的Firefox 36将在2月中旬左右发布。

下载地址:

http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/36.0b2/

了解更多:

https://developer.mozilla.org/en-US/Firefox/Releases/36

Changes for Web developersDeveloper Tools

Highlights:

• eval sources now appear in the Debugger

• Simpler process for connecting to Firefox for Android

• Box Model Highlighter works on remote targets

• "Invert the call tree" option in the Profiler

• Inspect DOM promises in the console

• Extra "Paste" commands in the Inspector

All devtools bugs fixed between Firefox 35 and Firefox 36.

CSS

• The will-change property has been enabled by default (bug 961871).

• The white-space property is now working on <textarea> HTML elements (bug 82711).

• The unicode-range descriptor is now supported by @font-face (bug 475891).

• The properties text-decoration-color, text-decoration-line, and text-decoration-style are unprefixed (bug 825004). The prefixed version are still available for some time to ease transition (bug 1097922).

• The text-decoration property is turned into shorthand property (bug 1039488).

• The properties object-fit and object-position are now supported (bug 624647)

• Thecontentsvalue of the display property has been experimented implemented. It is preffed off by default (bug 907396).

• In Quirks mode, the :activeand:hoverquiver quirk has been altered to be applied less often: it is now used only on links, only if there are no pseudo-element or other pseudo-class in the element and if it isn't part of a pseudo-class element (bug 783213).

• The isolation property has been implemented (bug 1077872).

• CSS <gradient> now applies on the premultiplied colors, matching the spec and other browsers, and getting rid of unexpected gray colors appearing in them (bug 591600).

• Interpolation hint syntax has been added to <gradient> (bug 1074056).

• The scroll-behavior property has been implemented (bug 1010538).

HTML

• Support for <meta name="referrer"> has been added (<a class="external external-icon" href="https://bugzilla.mozilla.org/show_bug.cgi?id=704320" title="FIXED: Implement

  ">bug 704320).

JavaScript

• The ECMAScript 6 Symbol data type has been enabled by default (was available in the Nightly channel since version 33) (bug 1066322):

• Symbol

• Symbol.for()

• Symbol.keyFor()

• Object.getOwnPropertySymbols()

• The old placeholder string"@@iterator"has been replaced with the real ES6 well-known symbol Symbol.iterator for the iterable interface property key (bug 918828).

• The spec-internal abstract operationToNumber(string)now supports binary (0b) and octal (0o) literals, this is a potentially breaking change from ES5 (bug 1079120).

• Number("0b11")now returns3, notNaN.

• "0o11" == 9now returnstrue, notfalse.

• The const declaration is now block-scoped and requires an initializer (bug 611388). It also can not be redeclared anymore (bug 1095439).

• {const a=1};anow throws a ReferenceError and does not returns1anymore due to block-scoping.

• const a;now throws a SyntaxError ("missing = in const declaration"): An initializer is required.

• const a = 1; a = 2;now also throws a SyntaxError ("invalid assignment to const a").

• The ES7 method Array.prototype.includes has been implemented, but for now, it is only enabled in Nightly builds (bug 1069063).

• The delete operator now triggers the "temporal dead zone" when using with let and const (bug 1074571).

• The non-standard letblocks andletexpressions are deprecated and will now log a warning in the console. Do not use them anymore, they will be removed in the future.

• WeakMap constructor now handles optional iterable argument (bug 1092537).

</ul>

Interfaces/APIs/DOM

• The CanvasRenderingContext2D.resetTransform() method of the Canvas API has been implemented (bug 1099148).

• ECDSA is now supported in the Web Crypto API (bug 1034854).

• You can now use WebSockets in Workers (bug 1112054).

• Our experimental implementation of WebGL 2.0 is going forward!

• The WebGLQuery interface is available (bug 1048719).

• The WebGL2RenderingContext.invalidateFrameBuffer() method has been implemented (bug 1076456).

• The MediaDevices interface, containing the Promise-based version of getUserMedia(), has been added. It is available via Navigator.mediaDevices (bug 1033885).

• The EME-related Navigator.requestMediaKeySystemAccess() method, and the related MediaKeySystemAccess, is now supported (bug 1095257).

• Thekeyschangeevent is now sent when an EME-related CDM change keys in a session (bug 1081755).

• Experimental support for virtual reality devices has landed behind thedom.vr.enabledpreference, off by default (bug 1036604).

• The function associated with RTCPeerConnection.onsignalingstatechange now receives an event as parameter, as per spec (bug 1075133).

• The experimental implementation of Web Animations make progress: the method AnimationPlayer.play() and AnimationPlayer.pause() are now supported (bug 1070745).

• The non-standard DOMRequest interface has now a then() method (bug 839838).

• The CSSOM View scroll behavior controlling methods, Element.scroll(), Element.scrollTo(), Element.scrollBy(), and Element.scrollIntoView(), have been implemented or extended (bug 1045754 and bug 1087559).

• Assigning to Element.innerHTML on an SVGElement now create elements in the SVG namespace (bug 886390).

</ul>

Networking

• Support for SPDY/3 has been removed; support for SPDY/3.1 is still available (bug 1097944).

Security

• RC4 is now considered as insecure and all UI indicators will react as such; SSLv3 has been disabled by default in Firefox 34, but the UI has been changed to help the user better understand what is happening (bug 1093595).

• The form-action directive of CSP 1.1 is now supported (bug 529687).

Changes for add-on and Mozilla developersJavaScript code modules

• PromiseUtils.resolveOrTimeout is implemented (bug 1080466).

• PromiseUtils.defer (a replacement for Promise.defer) is implemented (bug 1093021).

本文转载自: http://www.cnbeta.com/articles/364501.htm