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Firefox version 45 and 46
Firefox version 45 and 46




firefox version 45 and 46

  • Sanitization of WOFF fonts has been loosened a bit ( bug 1244693).Mozilla Firefox is one of the world’s most popular browsers available in 90 different languages and completely free.
  • The Permissions API has now been enabled by default, for all release versions, not just Nightly as it previously was ( bug 1221106.).
  • AnimationEffectTimingReadOnly and AnimationEffectReadOnly.timing have been implemented ( bug 1214536).
  • Our experimental implementation of Web Animations API has been updated:.
  • The asynchronous FileReader is now available in Web workers ( bug 901097).
  • In SVG, the SVGStyleElement interface now implements the LinkStyle mixin ) bug 1239128.
  • The method tParameters() has been added to allow changing the values of parameters after the RTCRtpSender was initially created.
  • When enabled, VP9 is the preferred codec previously VP8 was preferred ( bug 1242324). To enable it, set the preference 9_enabled to true in about:config.
  • The RTCPeerConnection.createOffer() method now supports the VP9 video codec, although this is disabled by default.
  • Request.mode now has a new value available, navigate, for supporting requests generated while navigating between documents (see bug 1209081.).
  • ExtendableMessageEvent.ports has now been marked as SameObject (see bug 1238225.).
  • rviceWorker has now been marked as SameObject (see bug 1238205.).
  • FetchEvent.request is now non-nullable (see bug 1238213.).
  • firefox version 45 and 46

    To use this extension, set the preference webgl.enable-draft-extensions to true in about:config.

  • The WEBGL_compressed_texture_etc extension has been implemented, allowing the use of ETC2 compressed texture formats ( bug 917505).
  • Use "bitmaprenderer" with OffscreenCanvas.getContext() or HTMLCanvasElement.getContext() to obtain this context.
  • A new ImageBitmapRenderingContext rendering context is now implemented.
  • The ImageBitmap.close() method is now supported ( bug 1172796).
  • To use this experimental API set to true in about:config ( bug 1172796).
  • The remaining parts of the experimental OffscreenCanvas API has been implemented new features: OffscreenCanvas() constructor, OffscreenCanvas.toBlob(), and ansferToImageBitmap().
  • When a non-existent option of a element is programmatically selected, instead of being incorrectly left unchanged, the selectedindex value is now set to -1, the selectedoptions to an empty HTMLCollection, and value to an empty string ( bug 1203668).
  • Added support for Document.elementsFromPoint() ( bug 1164427).
  • The deprecated Window.showModalDialog() method is no more available when Firefox runs in multi-process mode (e10s) ( bug 1234700).
  • #Firefox version 45 and 46 generator

  • JS1.7/JS1.8 (legacy) array comprehensions and JS1.7/JS1.8 (legacy) generator comprehensions have been removed ( bug 1220564).
  • Built-in accessor function names now have a "get" or "set" prefix ( bug 1180290, bug 1235656).
  • The non-standard, static RegExp.multiline property is now deprecated ( bug 1220457).
  • The non-standard () and () methods have been removed ( bug 1101817).
  • In Strict mode, setting properties on primitive values will now throw a TypeError ( bug 603201).
  • Redeclaration of let and const variables now throws a Synta圎rror instead of a TypeError as per the ECMAScript specification ( bug 1198833).
  • firefox version 45 and 46

    To use this experimental API set _memory to true in about:config. See the SharedArrayBuffer and Atomics objects.

  • The experimental EcmaScript Shared Memory API has been implemented.
  • The ES2015 () method has been implemented ( bug 1121937).
  • The ES2015 block-level functions have been implemented ( bug 1071646).
  • The ES2015 RegExp unicode (u) flag has been implemented ( bug 1135377).
  • "unsafe start" (formerly "true start") should serialize to "start" etc ( bug 1230398).
  • Added -webkit-filter for web compatibility, behind the preference, defaulting to false ( bug 1236506).
  • linear-gradient() support for the omission of 0deg units ( bug 1239153).
  • Added support for (-webkit-transform-3d) as a media query for 3D transform support, if about:config pref is set to true ( bug 1239799).
  • The experimental support of the font-display descriptor (of it requires to switch to true ( bug 1157064).
  • Gecko now accepts the -webkit- prefixed version of some properties it requires to switch to true ( bug 1213126).
  • The properties text-emphasis, text-emphasis-style, text-emphasis-color and text-emphasis-position are now enabled by default ( bug 1231485).
  • The true value has been renamed to unsafe this affects the properties justify-content, align-content, justify-self, align-self, justify-items and align-items ( bug 1230478).
  • The keywords auto-fill and auto-fit are now allowed in the repeat() function ( bug 1118820).
  • Our implementation of CSS Grids has been updated:.





  • Firefox version 45 and 46