Download Mozilla Firefox 33.0 Beta

As we are used to from Mozilla, the first beta release of the next version has already appeared shortly after the release of a stable version of the Firefox web browser. Version 33, which should be released on October 14th, will include support for OpenH264, improvements in search, and the ability to connect to an HTTP proxy over an https connection. Below is the still incomplete overview of the improvements that we can expect in version 33.

New

• Enhanced Tiles
• Continued experimentation with WebRTC-powered communications feature
• OpenH264 support (sandboxed)
• Smarter and faster JavaScript strings (learn more)
• Improved reliability of the session restoration (learn more)
• New CSP (Content Security Policy) backend
• Improved search experience through the location bar
• Connect to HTTP proxy over HTTPS
• Search suggestions on the Firefox Start Page (about:home)
• Azerbaijan [az] local added

Changed

• JSD (JavaScript Debugger Service) removed in favor of the Debugger interface (learn more)
• Proprietary window.crypto properties/functions removed

HTML5

• DOMMatrix interface implemented
• @counter-style rule from CSS3 Counter Styles specification implemented
• WebCrypto: wrapKey and unwrapKey implemented
• WebCrypto: Import/export or JWK-formatted keys
• WebCrypto: RSA-OAEP, PBKDF2 and AES-KW support

Developer

• Developer tools: Paint flashing for browser content repaints
• Cubic-bezier curves editor
• Display which elements have listeners attached
• New sidebar which displays a list of shortcuts to every @media rule in the current stylesheet
• Editable @keyframes rules in the Rules section of the Inspector
• CSS transform highlighter to the style-inspector

Known Issues

• Fix incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers (237623) – Resolved in v33.0a2

The following downloads are available:
Mozilla Firefox 33.0 beta for Windows (English)
Mozilla Firefox 33.0 beta for Linux (English)
Mozilla Firefox 33.0 beta for OS X (English)
Mozilla Firefox 33.0 Beta for Windows (English)
Mozilla Firefox 33.0 Beta for Linux (English)
Mozilla Firefox 33.0 Beta for OS X (English)
Mozilla Firefox 33.0 beta for Windows (Frisian)
Mozilla Firefox 33.0 beta for Linux (Frisian)
Mozilla Firefox 33.0 beta for OS X (Frisian)