Historial de Versiones Antiguas de Firefox 21.0

What’s New

NEW The Social API now supports multiple providers
NEW Enhanced three-state UI for Do Not Track (DNT)
NEW Firefox will suggest how to improve your application startup time if needed
NEW Preliminary implementation of Firefox Health Report
CHANGED Ability to restore removed thumbnails on New Tab Page
CHANGED CSS -moz-user-select:none selection changed to improve compatibility with -webkit-user-select:none (bug 816298)
CHANGED Graphics related performance improvements (bug 809821)
CHANGED Removed E4X support from Spidermonkey
DEVELOPER Implemented Remote Profiling
DEVELOPER Integrated add-on SDK loader and API libraries into Firefox
HTML5 Added support for element
HTML5 Implemented scoped stylesheets
HTML5 Added support for window.crypto.getRandomValues
FIXED Some function keys may not work when pressed (833719)
FIXED Browsing and Download history clearing needs unification to avoid confusion on clearing download history (847627)
FIXED 21.0: Security fixes can be found here

Known Issues

UNRESOLVED Unreadable text for some italic-styled text on Hebrew Windows system (see 837498)

UNRESOLVED Fullscreen playback support for Nvidia HTML 5 Stereo Mode on 3D videos on YouTube is broken (see 869866)
UNRESOLVED If you try to start Firefox using a locked profile, it will crash (see 573369)
UNRESOLVED Download statusbar add-on continues downloading files from Normal Browsing, when switching to Private Browsing (see 853463)