Mozilla放出了最新的Firefox 33 for Windows、Mac 、Linux、以及Android正式版。与以前的版本不同，本次更新更注重于性能和安全性，以及社区中呼声极高的部分新功能。对于桌面版来说，Firefox 33最大的变化是引入了WebRTC通信功能。
下载地址:
ftp://ftp.mozilla.org/pub/firefox/releases/33.0.1/
What’s New
Fixed
33.0.1: Firefox displays a black screen at start-up with certain graphics drivers
New
OpenH264 support (sandboxed)
New
Improved search experience through the location bar
New
Windows: OMTC enabled by default
New
Slimmer and faster JavaScript strings
New
Search suggestions on the Firefox Start (about:home) and new tab (about:newtab) pages
New
Support for connecting to HTTP proxy over HTTPS
New
New CSP (Content Security Policy) backend
New
Improved reliability of the session restoration
New
Azerbaijani [az] locale added
Changed
JSD (JavaScript Debugger Service) removed in favor of the Debugger interface
Changed
Proprietary window.crypto properties/functions removed
HTML5
DOMMatrix interface implemented
HTML5
@counter-style rule from CSS3 Counter Styles specification implemented
Developer
Cubic-bezier curves editor
Developer
Paint flashing for browser content repaints
Developer
Display which elements have listeners attached
Developer
New sidebar which displays a list of shortcuts to every @media rule in the current stylesheet
Developer
Editable @keyframes rules in the Rules section of the Inspector
Developer
CSS transform highlighter in the style-inspector
Fixed
Various security fixes
unresolved
Fix incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers (237623)
unresolved
PDF.js: With some images, wrong colors could show up. Affects a very small number of PDF
unresolved
Some certificate errors cannot be overridden (1042889)
unresolved
Windows: On some combination of hardware and drivers, the main window could be black. In this case, update your graphics drivers (1083071)