Mozilla Firefox 39.0 Beta 1 发布

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#深圳# 6月10日 亚马逊AWSome Day云计算免费培训报名中
　　Mozilla Firefox 39.0 Beta 1 今日发布于Mozila的FTP，目前官方还没有发布相关的更新报告，但从面向开发者的信息看，SSLv3被彻底移除出Firefox的支持范围，并实现对W3C制订的ARIA规范的支持，这是一个为残疾人士等提供无障碍访问动态、可交互Web内容的技术规范，为浏览器、媒体播放器、辅助技术的开发人员以及Web内容开发者定义了可以获得更广泛跨平台可访问性的方法。可见Firefox从现在开始对残障人士的会更加友好。
　　下载地址:
　　http://dm-download02.mozilla.org/pub/mozilla.org/mozilla.org/firefox/releases/39.0b1/
　　
　　Changes for Web developersDeveloper Tools
　　Highlights:

• 　　WebIDE now supports debugging Firefox OS devices over Wi-Fi
  
• 　　WebIDE now supports Cordova projects
  
• 　　Animations view: rewind, fast-forward, and jump to a specific time
  
• 　　The cubic Bézier curve editor now includes 31 presets
  
• 　　Drag and drop elements in the Page Inspector
  
• 　　Web console command history is now persisted across sessions
  
• 　　$_ console command to print the last result evaluated
  
• 　　Better box model highlighting for inline elements
  

　　All devtools bugs fixed between Firefox 38 and Firefox 39.
　　CSS

• 　　Support of the  type on  element, but can be any element with this display value.">list-style-type, as well as its shorthand property list-style has been implemented (bug?1144607).
  
• 　　CSS Scroll Snapping has been implemented (bug?945584 and bug?1138658).
  
• 　　Cascading of CSS Animations and CSS Transitions has been rewritten to match the latest specification (bug?1125455).
  
• 
  　　Support for vertical scripts, with the writing-mode is now turned on by default on Nightly and Developer Edition, but not on Firefox Beta and Firefox>
  

　　HTML

• 　　A new ARIA role, switch, is now supported (bug?1136563).
  
• 　　Support for allowing to anticipate a future connection without revealing any information has been implemented (bug?1135160).
  

　　JavaScript

• 　　The RegExp constructor no longer throws when the first argument is a RegExp and the second flags argument is present (bug?1108949).
  
• 　　The Object.prototype.__noSuchMethod__ property is now deprecated and throws a console warning (see bug?1140428 and this platform announcement).
  
• 　　The implementation of the Proxy object has been updated to comply more with the ES6 specification:
  
  
  
  • 　　The defineProperty and set handlers now need to explicitly return true to be successful, otherwise a TypeError exception will be thrown in strict mode (bug?1132522).
    
  • 　　If the window object is set as the target, those handlers will now throw a TypeError (bug?828137).
    
  
  
• 　　When using arrow functions (=>), a line terminator (\n) is no longer allowed after arrow function arguments (() \n => {}) (bug?1141392).
  
• 　　RegExp.prototype.toString is now a generic function (bug?1079919).
  
• 　　The non-standard flags argument of String.prototype.match(),?String.prototype.search(), and String.prototype.replace() is now deprecated and throws a console warning (bug?1142351).
  
• 　　The try/catch behavior of Object.assign() has been removed to conform with the latest ES6 draft (bug?1103344).
  

　　Interfaces/APIs/DOM

• 　　The experimental CanvasRenderingContext2D.addHitRegion() method now accepts a path option, which allows you to add hit regions to Path2D objects (bug?1129147).
  
• 　　New methods have been added to manipulate FormData objects (bug?1085283) and FormData are now supported in Web workers (bug?739173).
  
• 　　The non-standard XMLHttpRequest.sendAsBinary() method has been removed (bug?853162).
  
• 　　Progress in our experimental implementation of Web Animations: AnimationPlayer.startTime is now writeable (bug?1073379).
  
• 　　Progress in our experimental implementation of Service Workers: Cache and CacheStorage interfaces are now implemented (bug?940273).
  
• 　　The experimental Fetch API has been activated by default (bug?1133861).
  
• 　　Progress in our experimental implementation of WebGL2: WebGLSync is now implemented (bug?1048721).
  

　　MathML
　　No change.
　　SVG
　　No change.
　　Audio/Video
　　No change.
　　Miscelleanous

• 
  　　WOFF2fonts support is now turned on by default in>
  

　　Networking

• 　　Support for SSLv3 has been completely removed (bug?1106470).
  

　　SecurityChanges for add-on and Mozilla developersXUL
　　No change.
　　JavaScript code modules
　　No change.
　　XPCOM
　　No change.