Adobe Flash Player Plugin non-IE

Updated debugger (aka debug players or content debuggers) and standalone (aka projector) versions of Flash Player 11.1 are available for Flash Builder 4, Flash Catalyst, Flash Professional CS4, and Flash Professional CS5 users. These players contain fixes for critical vulnerabilities identified in Security Bulletin APSB11-28. All users are encouraged to update to the new players

Media measurement (new in desktop only)
Measure video more easily. Media Measurement for Adobe® Flash® allows companies to get real-time, aggregated reporting of how their video content is distributed, what the audience reach is, and how much video is played. With Adobe Flash Player 10.3 and Adobe SiteCatalyst®, powered by Omniture®, developers can implement video analytics for websites with as little as two lines of code. Analytics solution providers can use a set of new open APIs to easily implement consistent video analytics regardless of implementation or delivery protocol.
Acoustic echo cancellation (new in desktop only)

Create real-time online collaboration experiences with high-quality audio, such as telephony, in-game voice chat, and group conferencing applications for desktop PCs. Developers can take advantage of acoustic echo cancellation, noise suppression, voice activity detection, and automatic compensation for various microphone input levels. End users will be able to experience higher quality audio, facilitating smoother conversation flow, without using a headset.
Simplified local storage management (new in desktop only)

Get more control over user privacy with a simpler way to clear local storage from the browser settings interface — similar to how users clear their browser cookies today. It integrates control of local storage with the browser's privacy settings in Mozilla Firefox 4, Microsoft Internet Explorer 8 and later, Google Chrome 11 (available in Dev Channel), and a future release of Apple Safari.
Local settings manager (new in desktop only)

Manage Flash Player privacy, security, and storage settings more easily with streamlined controls. Users can access the Flash Player Settings Manager directly from the Control Panel or System Preferences on Windows®, Mac, and Linux computers.