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---
title: Firefox 32 for developers
slug: Mozilla/Firefox/Releases/32
tags:
- NeedsTranslation
- TopicStub
translation_of: Mozilla/Firefox/Releases/32
---
{{FirefoxSidebar}}
## Changes for Web developers
### Developer Tools
Highlights:
- [Web Audio Editor](/fr/docs/Tools/Web_Audio_Editor)
- [Code completion and inline documentation in Scratchpad](/fr/docs/Tools/Scratchpad#Code_completion_and_inline_documentation)
- [User agent styles in the Inspector's Rules view](/fr/docs/Tools/Page_Inspector#Rules_view)
- [Element picker button has moved](/fr/docs/Tools/Page_Inspector#Firefox_32_onwards_2)
- [Node dimensions added to the Inspector's infobar](/fr/docs/Tools/Page_Inspector#Firefox_32_onwards)
- [Full page screenshot button added](/fr/docs/Tools/Tools_Toolbox#Extra_tools)
- HiDPI images added to the tools
- Nodes that have `display:none` are shown differently in the Inspector
[All devtools bugs fixed between Firefox 31 and Firefox 32](https://bugzilla.mozilla.org/buglist.cgi?resolution=FIXED&classification=Client%20Software&chfieldto=2014-06-09&chfield=resolution&query_format=advanced&chfieldfrom=2014-04-28&chfieldvalue=FIXED&bug_status=RESOLVED&bug_status=VERIFIED&component=Developer%20Tools&component=Developer%20Tools%3A%203D%20View&component=Developer%20Tools%3A%20App%20Manager&component=Developer%20Tools%3A%20Canvas%20Debugger&component=Developer%20Tools%3A%20Console&component=Developer%20Tools%3A%20Debugger&component=Developer%20Tools%3A%20Framework&component=Developer%20Tools%3A%20Graphic%20Commandline%20and%20Toolbar&component=Developer%20Tools%3A%20Inspector&component=Developer%20Tools%3A%20Memory&component=Developer%20Tools%3A%20Netmonitor&component=Developer%20Tools%3A%20Object%20Inspector&component=Developer%20Tools%3A%20Profiler&component=Developer%20Tools%3A%20Responsive%20Mode&component=Developer%20Tools%3A%20Scratchpad&component=Developer%20Tools%3A%20Source%20Editor&component=Developer%20Tools%3A%20Style%20Editor&component=Developer%20Tools%3A%20User%20Stories&component=Developer%20Tools%3A%20WebGL%20Shader%20Editor&product=Firefox).
### CSS
- Enabled {{cssxref("mix-blend-mode")}} by default ({{Bug(952643)}}).
- Enabled `position:sticky` by default in release builds (only enabled on Nightly and Aurora before) ({{Bug(916315)}}).
- Implemented {{cssxref("box-decoration-break")}} and removed the non-standard {{cssxref("-moz-background-inline-policy")}}({{Bug(613659)}}).
- Allowed {{cssxref("flex-grow")}} and {{cssxref("flex-shrink")}} to transition between zero and nonzero values ({{Bug(996945)}}).
### HTML
- Experimentally implemented, behind a pref, {{HTMLElement("img")}} {{HTMLattrxref("srcset", "img")}} property, To activate it set `dom.image.srcset.enable` to `true` ({{Bug(870021)}}).
- [**id**](/fr/docs/Web/HTML/Global_attributes/id) and [**class**](/fr/docs/Web/HTML/Global_attributes/class) are now true [global attributes](/fr/docs/Web/HTML/Global_attributes) and also apply to XML elements, in a namespace or not ({{bug(741295)}}).
### JavaScript
- The following new ECMAScript 6 built-in methods got implemented:
- {{jsxref("Array.from()")}} ({{bug(904723)}}),
- {{jsxref("Array.prototype.copyWithin()")}} ({{bug(934423)}}),
- {{jsxref("Number.isSafeInteger()")}} ({{bug(1003764)}}).
### Interfaces/APIs/DOM
- The {{domxref("NavigatorLanguage.languages", "navigator.languages")}} property and {{event("languagechange")}} event have been implemented ({{Bug(889335)}}).
- The {{domxref("Navigator.vibrate()")}} method behavior has been adapted to the latest specification: too long vibrations are now truncated ({{bug(1014581)}}).
- The {{domxref("KeyboardEvent.getModifierState()")}} and {{domxref("MouseEvent.getModifierState()")}} methods have been extended to support the `Accel` virtual modifier ({{Bug(1009388)}}).
- The {{domxref("KeyboardEvent.code")}} property have been experimentally implemented: it is disabled on release build ({{Bug(865649)}}).
- Scoped selectors for {{domxref("Document.querySelector()")}} and {{domxref("Document.querySelectorAll()")}}, for example `querySelector(":scope > li")`have been implemented ({{Bug(528456)}}).
- The experimental implementation of the {{domxref("Document.timeline")}} interface, related to the [Web Animation API](http://dev.w3.org/fxtf/web-animations/), has been added ({{bug("998246")}}). It is controlled by `layout.web-animations.api.enabled` preference, enabled only on Nightly and Aurora for the moment.
- The [Data Store API](/fr/docs/Web/API/Data_Store_API) has been made available to [Web Workers](/fr/docs/Web/Guide/Performance/Using_web_workers) ({{bug("949325")}}). It still is only activated for certified applications.
- The [ServiceWorker](/fr/docs/Web/API/ServiceWorker_API) {{domxref("InstallPhaseEvent")}} and {{domxref("InstallEvent")}} interfaces have been implemented ({{ Bug("967264") }}).
- The [MSISDN Verification API](/fr/docs/Web/API/MSISDN_Verification_API), only activated for privileged apps, has been added ({{ Bug("988469") }}).
- The [Gamepad API](/fr/docs/Web/API/Gamepad_API) is now supported on Firefox for Android ({{bug(852935)}}).
- To match the spec and the evolution of the CSS syntax, minor changes have been done to {{domxref("CSS.escape()")}}. The identifier now can begins with `'--'` and the second dash must not be escaped. Also vendor identifier are no more escaped. ({{bug(1008719)}})
- To complete our Hit Regions implementation, {{domxref("MouseEvent.region")}} has been implemented ({{bug(979692)}}).
- The {{domxref("CanvasRenderingContext2D.drawFocusIfNeeded()")}} method is now enabled by default ({{bug(1004579)}}).
- The {{domxref("Navigator.doNotTrack")}} properties now returns `'1'` or `'0'`, reflecting the HTTP value, instead of `'yes'` or `'no'` ({{bug(887703)}}).
- New constraints for [WebRTC](/fr/docs/Glossary/WebRTC)'s {{domxref("NavigatorUserMedia.getUserMedia", "getUserMedia()")}}, `width`, `height`, and `framerate`, have been added, to limit stream dimensions and frame rate ({{bug("907352")}}):
```json
{
mandatory: {
width: { min: 640 },
height: { min: 480 }
},
optional: [
{ width: 650 },
{ width: { min: 650 }},
{ frameRate: 60 },
{ width: { max: 800 }},
]
}
```
### MathML
- Add support for the {{MathMLElement("menclose")}} notation `phasorangle`.
### SVG
_No change._
### Audio/Video
_No change._
## Security
- [Privileged code now gets Xray vision for JavaScript `Object` and `Array` instances](/fr/docs/Xray_vision#Xray_semantics_for_Object_and_Array).
## Changes for add-on and Mozilla developers
Xray vision is now applied to JavaScript objects that are not themselves DOM objects: [Xrays for JavaScript objects](/fr/docs/Xray_vision#Xrays_for_JavaScript_objects).
A [getDataDirectory()](</fr/Add-ons/Add-on_Manager/Addon#getDataDirectory()>) method has been added to [Addon](/fr/Add-ons/Add-on_Manager/Addon) instances. This method returns the preferred location, within the current profile, for add-ons to store data.
### Add-on SDK
#### Highlights
- Added [`exclude`](/fr/Add-ons/SDK/High-Level_APIs/page-mod#PageMod%28options%29) option to `PageMod`.
- Added [`anonymous`](/fr/Add-ons/SDK/High-Level_APIs/request#Request%28options%29) option to `Request`.
- [Add-on Debugger](/fr/Add-ons/Add-on_Debugger) now includes a Console and a Scratchpad.
#### Details
[GitHub commits made between Firefox 31 and Firefox 32](https://github.com/mozilla/addon-sdk/compare/firefox31...firefox32). This will not include any uplifts made after this release entered Aurora.
[Bugs fixed between Firefox 31 and Firefox 32](https://bugzilla.mozilla.org/buglist.cgi?resolution=FIXED&chfieldto=2014-06-09&chfield=resolution&query_format=advanced&chfieldfrom=2014-04-28&chfieldvalue=FIXED&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED&product=Add-on%20SDK&list_id=10493962). This will not include any uplifts made after this release entered Aurora.
## See also
- [Site Compatibility for Firefox 32](/fr/docs/Mozilla/Firefox/Releases/32/Site_Compatibility)
### Older versions
{{Firefox_for_developers('31')}}
|
