Firefox Release Notes
Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.
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33.0.1
Firefox Release
October 24, 2014
We'd also like to extend a special thank you to all of the new Mozillians who contributed to this release of Firefox!
New
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OpenH264 support (sandboxed)
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Improved search experience through the location bar
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Windows: OMTC enabled by default
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Slimmer and faster JavaScript strings
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Search suggestions on the Firefox Start (about:home) and new tab (about:newtab) pages
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Support for connecting to HTTP proxy over HTTPS
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New CSP (Content Security Policy) backend
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Improved reliability of the session restoration
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Azerbaijani [az] locale added
Fixed
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33.0.1: Firefox displays a black screen at start-up with certain graphics drivers
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Various security fixes
Changed
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JSD (JavaScript Debugger Service) removed in favor of the Debugger interface
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Proprietary window.crypto properties/functions removed
Developer
- Developer Information
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Cubic-bezier curves editor
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Paint flashing for browser content repaints
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Display which elements have listeners attached
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New sidebar which displays a list of shortcuts to every @media rule in the current stylesheet
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Editable @keyframes rules in the Rules section of the Inspector
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CSS transform highlighter in the style-inspector
Web Platform
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DOMMatrix interface implemented
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@counter-style rule from CSS3 Counter Styles specification implemented
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Windows: On some combination of hardware and drivers, the main window could be black. In this case, update your graphics drivers (1083071)
unresolved
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Fix incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers (237623)
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PDF.js: With some images, wrong colors could show up. Affects a very small number of PDF
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Some certificate errors cannot be overridden (1042889)
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Windows: With Avast HTTPS scanning enabled, Firefox will not close correctly (1087674)
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Windows: Interface may be slow when typing or selecting text (1089183)
Get the most recent version
Download Firefox — English (US)
Your system may not meet the requirements for Firefox, but you can try one of these versions:
Download Firefox — English (US)
Your system doesn't meet the requirements to run Firefox.
Your system doesn't meet the requirements to run Firefox.
Please follow these instructions to install Firefox.
- Download Firefox
- Download Firefox
- Download Firefox
- Download Firefox
- Download Firefox
- Download Firefox
- Download Firefox
- Firefox for Android
- Firefox for iOS
