Firefox 39.0

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Download: Firefox 39.0 English

Download: Firefox 39.0 ภาษาไทย

What’s New

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

CHANGED Removed support for insecure SSLv3 for network communications
CHANGED The malware detection service for downloads now covers common Mac file types (Bug 1138721)
CHANGED Performance of displaying dashed lines is improved (Mac OS X) (Bug 1123019)

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

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

FIXED Improve performance for IPv6 fallback to IPv4
FIXED Fix incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers
FIXED The Security state indicator on a page now correctly ignores loads caused by previous pages
FIXED Fixed an issue where a Hello conversation window would sometimes fail to open
FIXED A regression that could lead to Flash not displaying has been fixed
FIXED Update to NSS 3.19.2
FIXED Various security fixes