Download Mozilla Firefox 35.0 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 35, which should be released on January 13th, will include improvements to the chat client Firefox Hello and the OS X version has built-in support for h264 files. Below is an incomplete overview of the improvements that we can expect in version 35.

New

• Firefox Hello with new rooms-based conversations model
• Built-in support for H264 (MP4) on Mac OS X Snow Leopard (10.6) and newer through native APIs
• Improved handling of dynamic styling changes to increase responsiveness
• Implemented HTTP Public Key Pin Extension (for enhanced authentication or encrypted connections)

HTML5

• Resource Timing API implemented
• CSS filters enabled by default
• WebSocket available in Workers
• Changed JavaScript ‘let’ semantics to match the ES6 specification

Developer

• Computed view: Nodes matching the hovered selector are now highlighted
• Support for inspecting ::before and ::after pseudo elements

Fixed

• Show DOM Properties context menu item in inspector
• Reduced resource usage for scaled images
• PDF.js updated to version 1.0.907

The following downloads are available:
Mozilla Firefox 35.0 beta for Windows (English)
Mozilla Firefox 35.0 beta for Linux (English)
Mozilla Firefox 35.0 beta for OS X (English)
Mozilla Firefox 35.0 Beta for Windows (English)
Mozilla Firefox 35.0 Beta for Linux (English)
Mozilla Firefox 35.0 Beta for OS X (English)
Mozilla Firefox 35.0 beta for Windows (Frisian)
Mozilla Firefox 35.0 beta for Linux (Frisian)
Mozilla Firefox 35.0 beta for OS X (Frisian)