"We compare Firefox 29 to Firefox 29 to find out which is the fastest browser when using HTML5, Octane, Peacekeeper and Sunspider with Operating System Windows XP and AMD X2 270."
Firefox 39 Share Hello URLs with social networks.
Firefox 39 Project Silk: Smoother animation and scrolling (Mac OS X).
Firefox 39 Support for new Unicode 8.0 skin tone emoji.
Firefox 39 SafeBrowsing malware detection lookups enabled for downloads (Mac OS X and Linux).
Firefox 39 Support for 'switch' role in ARIA 1.1 (web accessibility).
Firefox 39 Removed support for insecure SSLv3 for network communications.
Firefox 39 Performance of displaying dashed lines is improved (Mac OS X).
Firefox 39 Malware detection service for downloads now covers common Mac file types.
Firefox 39 Added support for CSS Scroll Snap Points.
Firefox 39 Enable the Fetch API for network requests from dedicated, shared and service workers.
Firefox 39 Implemented allowing anticipation of a future connection without revealing any information.
Firefox 39 List-style-type now accepts a string value.
Firefox 39 Cascading of CSS transitions and animations now matches the current spec.
Firefox 39 Drag and drop enabled for nodes in Inspector markup view.
Firefox 39 localhost is now available offline for WebSocket connections.
Firefox 39 Web Console input history persists even after closing the toolbox.
Firefox 39 Fix incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers.
Firefox 39 A regression that could lead to Flash not displaying has been fixed.
Firefox 39 Improve performance of IPv6 fallback to IPv4.
Firefox 39 Security state indicator on a page now correctly ignores loads caused by previous pages.
Firefox 39 Various security fixes.