See what’s new in Firefox!

OpenH264 support (sandboxed)

Improved search experience through the location bar

Search suggestions on the Firefox Start (about:home) and new tab (about:newtab) pages

Windows: OMTC enabled by default

Slimmer and faster JavaScript strings

New CSP (Content Security Policy) backend

Support for connecting to HTTP proxy over HTTPS

Improved reliability of the session restoration

Azerbaijani [az] locale added

Various security fixes

Fix incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers (237623)

Proprietary window.crypto properties/functions removed

JSD (JavaScript Debugger Service) removed in favor of the Debugger interface

Cubic-bezier curves editor

CSS transform highlighter in the style-inspector

Editable @keyframes rules in the Rules section of the Inspector

New sidebar which displays a list of shortcuts to every @media rule in the current stylesheet

Display which elements have listeners attached

Paint flashing for browser content repaints

@counter-style rule from CSS3 Counter Styles specification implemented

DOMMatrix interface implemented

Windows: With Avast HTTPS scanning enabled, Firefox will not close correctly (1087674)

Windows: On some combination of hardware and drivers, the main window could be black. In this case, update your graphics drivers (1083071)

Some certificate errors cannot be overridden (1042889)

PDF.js: With some images, wrong colors could show up. Affects a very small number of PDF

Windows: Interface may be slow when typing or selecting text (1089183)