Firefox 34.0.5

What's new in this version:

New:
- Default search engine changed to Yahoo! for North America
- Default search engine changed to Yandex for Belarusian, Kazakh, and Russian locales
- Improved search bar (en-US only)
- Firefox Hello real-time communication client
- Easily switch themes/personas directly in the Customizing mode
- Wikipedia search now uses HTTPS for secure searching (en-US only)
- Implementation of HTTP/2 (draft14) and ALPN
- Recover from a locked Firefox process in the "Firefox is already running" dialog on Windows

Changed:
- Disabled SSLv3
- Proprietary window.crypto properties/functions re-enabled (to be removed in Firefox 35)
- Firefox signed by Apple OS X version 2 signature

HTML5:
- ECMAScript 6 WeakSet Implemented
- JavaScript Template Strings Implemented
- CSS3 Font variants and features control (e.g. kerning) implemented
- WebCrypto: RSA-OAEP, PBKDF2 and AES-KW support
- WebCrypto: wrapKey and unwrapKey implemented
- WebCrypto: Import/export of JWK-formatted keys
- matches() DOM API implemented (formerly mozMatchesSelector())
- Performance.now() for workers implemented
- WebCrypto: ECDH support

Developer:
- WebIDE: Create, edit, and test a new Web application from your browser
- Highlight all nodes that match a given selector in the Style Editor and the Inspector’s Rules panel
- Improved User Interface of the Profiler
- console.table function added to web console

Fixed:
- CSS transitions start correctly when started at the same time as changes to display, position, overflow, and similar properties

Various security fixes:
- Apple CoreGraphics framework on OS X 10.10 logging input data to /tmp directory
- Bad casting from the BasicThebesLayer to BasicContainerLayer
- Buffer overflow while parsing media content
- Use-after-free during HTML5 parsing
- CSP leaks redirect data via violation reports
- XMLHttpRequest crashes with some input streams
- XBL bindings accessible via improper CSS declarations
- Miscellaneous memory safety hazards (rv:34.0 / rv:31.3)