firefox beta

Mozilla Firefox 18 beta is now available for download and testing.What’s new in this beta?

Support for Retina Display on OS X 10.7 and up
Preliminary support for WebRTC
Experience better image quality with our new HTML scaling algorithm
Performance improvements around tab switching
CSS3 Flexbox implemented
Support for new DOM property window.devicePixelRatio
Support for (@)supports added
Improvement in startup time through smart handling of signed extension certificates
Support for W3C touch events impemented, taking the place of MozTouch events
IonMonkey -new JavaScript JIT compiler
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Mozilla Firefox 16 beta 1 for Windows, Mac and Linux is now available for download and testing.
What’s new in this beta version?

Firefox on Mac OS X now has preliminary VoiceOver support turned on by default
Initial web app support (Windows/Mac/Linux)
Acholi localization added
Improvements around JavaScript responsiveness through incremental garbage collection
New Developer Toolbar with buttons for quick access to tools, error count for the Web Console, and a new command line for quick keyboard access
CSS3 Animations, Transitions, Transforms and Gradients unprefixed in Firefox 16
Recently opened files list in Scratchpad implemented
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Mozilla Firefox 15 beta 1 for Windows, Mac and Linux is now available for download and testing.What’s new in this beta version?

Preliminary native PDF support (Aurora/Beta only)
Support for SPDY networking protocol v3
WebGL enhancements, including compressed textures for better performance
Optimized memory usage for add-ons
JavaScript debugger integrated into developer tools
New layout view added to Inspector
The CSS word-break property has been implemented.
High precision event timer implemented
New responsive design tool allows web developers to switch between desktop and mobile views of sites
Native support for the Opus audio codec added
The source element now supports the media attribute
The audio and video elements now support the played attribute
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Mozilla Firefox 13 beta 1 for Windows, Mac and Linux is now available for download and testing.What’s new in this beta version?

When opening a new tab, users are now presented with their most visited pages
The default home page now has quicker access to bookmarks, history, settings, and more
SPDY protocol now enabled by default for faster browsing on supported sites
Restored background tabs are not loaded by default for faster startup
Smooth scrolling is now enabled by default
72 total improvements to Page Inspector, HTML panel, Style Inspector, Scratchpad and Style Editor
The column-fill CSS property has been implemented
Experimental support for ECMAScript 6 Map and Set objects has been implemented
Support for the CSS3 background-position property extended syntax has been added
The :invalid pseudo-class can now be applied to the element
The CSS turn angle unit is now supported
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Mozilla Firefox 12 beta 1 for Windows, Mac and Linux is now available for download and testing.What’s new in this beta version?

Windows: Firefox is now easier to update with one less prompt (User Account Control)
Page Source now has line numbers
Line breaks are now supported in the title attribute
Improvements to “Find in Page” to center search result
URLs pasted into the download manager window are now automatically downloaded
The column-fill CSS property has been implemented
Support for the text-align-last CSS property has been added
Experimental support for ECMAScript 6 Map and Set objects has been implemented
OS X: WebGL performance may be degraded on some hardware (713305)
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Mozilla Firefox 11 beta 1 for Windows, Mac and Linux is now available for download and testing.What’s new in this beta version?

Firefox can now migrate your bookmarks, history, and cookies from Google Chrome.

With Sync enabled, add-ons can now be synchronized across your computers.

The CSS text-size-adjust property is now supported.

The outerHTML property is now supported on HTML elements.

View source syntax highlighting now uses the HTML5 parser.

The Style Editor for CSS editing is now available to web developers

Web developers can now visualize a web page in 3D using the Page Inspector 3D View.

SPDY protocol support for faster page loads is now testable.

XMLHttpRequest now supports HTML parsing.

Files can now be stored in IndexedDB

Websockets has now been unprefixed.

Redesigned media controls for HTML5 video.

Firefox notifications may not work properly with Growl 1.3 or later. (691662)
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Mozilla Firefox 10 beta 1 for Windows, Mac and Linux is now available for download and testing.What’s new in this beta?

The forward button is now hidden until you navigate back.
Full Screen API.
Page Inspector.
Style Inspector.
CSS3 3D-Transforms.
Anti-aliasing for WebGL.
Scratchpad with Orion Code Editor.
Add-ons Compatible by Default.
Firefox Sync is enhanced with an easier setup process so you can pair your Android phone, tablet or any Firefox-enabled device without needing to be at your desktop computer.
The forward button is now hidden until you navigate back.
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Mozilla Firefox 9 beta 5 for Windows, Mac and Linux is now available for download and testing. What’s new in this beta?

Added Type Inference, significantly improving JavaScript performance
Added two finger swipe navigation and Improved theme integration for Mac OS X Lion
Added support for font-stretch and querying Do Not Track status via JavaScript
Improved standards support for HTML5, MathML,CSS and text-overflow
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