See what’s new in Firefox!

New

• Mirroring support for Chromecast

• Added support for Prefer:Safe HTTP header

• Wikipedia search now uses HTTPS for secure searching (en-US only)

• Beta search default changed to Yahoo for evaluation (en_US only)

• Toggle wifi on error pages

• Public key pinning support enabled

• Implementation of HTTP/2 (draft14) and ALPN

• Redesigned first run experience

• Browser theme refresh

Fixed

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

Developer

Web Platform

• Support for the ECMAScript 6 Symbol data type added

• ECMAScript 6 WeakSet Implemented

• JavaScript Template Strings Implemented

• CSS3 Font variants and features control (e.g. kerning) implemented

• Device Storage API for privileged apps enabled

• 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

unresolved

• MP4 videos will not play on Android L

• Flash does not work on Android L