Firefox 39.0.3 [Update]

--- August 6, 2015 ---
Firefox 39.0.3 is now available for download and all existing users should be able to upgrade to it automatically (Menu > Help menu > About Firefox). This build fixed same origin violation and local file stealing via PDF reader.

--- July 3, 2015 ---
Firefox 39.0 Final released
Mozilla has released the final version of Firefox 39.0 for both desktop and mobile. Firefox 39.0 integrated Firefox Share into Firefox Hello to help you share anything on the Web with any or all of your friends.

Firefox 39.0 also added screen sharing feature to Firefox Hello, that allows the host to share a browser tab or application window while in the video conversation. You can share any website or window that you’re viewing while talking to friends, family and co-workers. It’s a great way to shop online together, collaborate on a document or just watch a cat video with a friend.

In addition, Firefox 39.0 integrated Pocket into Firefox Accounts that helps you save all the articles, videos and websites that you want to read or watch later, all in one place. Pocket is available in Firefox Accounts in U.S. English, German, Japanese, Russian and European Spanish while we continue to add support for more languages and features.

The new version also address multiple vulnerabilities, some of which could allow a remote, unauthenticated attacker to completely compromise a vulnerable system. Firefox 39.0: Security fixes can be found here.

What's new features in Firefox 39.0?
According to Firefox release notes, Firefox 39.0 for desktop has the following changes:

New:
  • Share Hello URLs with social networks.
  • Project Silk: Smoother animation and scrolling (Mac OS X).
  • Support for 'switch' role in ARIA 1.1 (web accessibility).
  • SafeBrowsing malware detection lookups enabled for downloads (Mac OS X and Linux).
  • Support for Unicode 8.0 skin tone emoji.

Changed:
  • Removed support for insecure SSLv3 for network communications
  • Disable use of RC4 except for temporarily whitelisted hosts
  • The malware detection service for downloads now covers common Mac file types (Bug 1138721)
  • Performance of displaying dashed lines is improved (Mac OS X) (Bug 1123019)

HTML5:
  • List-style-type now accepts a string value
  • Enable the Fetch API for network requests from dedicated, shared and service workers
  • Cascading of CSS transitions and animations now matches the current spec
  • Implement <link rel="preconnect"> allowing anticipation of a future connection without revealing any information
  • Added support for CSS Scroll Snap Points

Developer:
  • Drag and drop enabled for nodes in Inspector markup view
  • Webconsole input history persists even after closing the toolbox
  • Cubic bezier tooltip now shows a gallery of timing-function presets for use with CSS animations
  • localhost is now available offline for WebSocket connections

You can find the full changelog here.

Firefox for android
According to Firefox release notes, Firefox 39.0 for android allows you paste clipboard contents into editable web contents. It also contains a number of improvements, here are highlights of changes in version 39.0 for android:

New:
  • Paste Android clipboard content into editable web content.
  • Support for 'switch' role in ARIA 1.1 (web accessibility).

Changed:
  • Removed support for insecure SSLv3 for network communications.
  • Sync now only uses the strongest TLS configuration available on your device.

You can find the full changelog here.

Download Firefox 39.0
The links in this section correspond to files available for this download. Download the files appropriate for you.

Screenshots:




Reference:
Firefox 39.0 Release Notes
New Sharing Features in Firefox
Firefox Puts You in Control of Your Online Life 

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