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NEW
Support for new scrollbar style in Mac OS X 10.7 and newer
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NEW
Mixed content blocking enabled to protects users from man-in-the-middle attacks and eavesdroppers on HTTPS pages (learn more)
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CHANGED
Improved about:memory's functional UI
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CHANGED
Enabled DXVA2 on Windows Vista+ to accelerate H.264 video decoding
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CHANGED
Updated Firefox Logo
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CHANGED
"Load images automatically", "Enable JavaScript", and Always show the tab bar" checkboxes removed from preferences and reset to defaults
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CHANGED
Simplified interface for notifications of plugin installation
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CHANGED
Users can now switch to a new search provider across the entire browser
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CHANGED
CSP policies using the standard syntax and semantics will now be enforced
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DEVELOPER
Implemented a global browser console
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DEVELOPER
Social share functionality
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DEVELOPER
HTML5 <input type="range"> form control implemented
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DEVELOPER
Write more accessible pages on touch interfaces with new ARIA role for key buttons
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DEVELOPER
Added unprefixed requestAnimationFrame
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DEVELOPER
New feature in toolbox: Network Monitor
- DEVELOPER
What’s New
Known Issues
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Unresolved
If you try to start Firefox using a locked profile, it will crash (see 573369)