Log Message:
Update to 39.0

Changelog:
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 Disable use of RC4 except for temporarily whitelisted hosts
Changed The malware detection service for downloads now covers common Mac file \ 
types (Bug 1138721)
Changed 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

Fixed in Firefox 39
    2015-71 NSS incorrectly permits skipping of ServerKeyExchange
    2015-70 NSS accepts export-length DHE keys with regular DHE cipher suites
    2015-69 Privilege escalation in PDF.js
    2015-68 OS X crash reports may contain entered key press information
    2015-67 Key pinning is ignored when overridable errors are encountered
    2015-66 Vulnerabilities found through code inspection
    2015-65 Use-after-free in workers while using XMLHttpRequest
    2015-64 ECDSA signature validation fails to handle some signatures correctly
    2015-63 Use-after-free in Content Policy due to microtask execution error
    2015-62 Out-of-bound read while computing an oscillator rendering range in \ 
Web Audio
    2015-61 Type confusion in Indexed Database Manager
    2015-60 Local files or privileged URLs in pages can be opened into new tabs
    2015-59 Miscellaneous memory safety hazards (rv:39.0 / rv:31.8 / rv:38.1)