August 14, 2012. Welcome to Adobe® Flash Player® 11.3 and AIR® 3.3. This release includes bug fixes related to general stability, audio, and video.

Current Runtime Release Version(s)

  • Flash Player Desktop 11.3.300.271

New Features


Security Enhancements

This release consists of security enhancements as listed in Security Bulletin APSB12-18

Fixed Issues


Known Issues

  • Audio distortion issues when streaming Flash content(3212648)

System Requirements

For current Flash Player system requirements, visit

For current AIR system requirements, visit

For Flash Access system requirements (client and server), visit

Flash Player 11.3 has the following minimum system requirements:





2.33 Ghz or faster x86-compatible processor, or Intel® Atom™ 1.6GHz or faster processor for netbook class devices

Intel® Core™  Duo 1.83GHz or faster processor

Operating System 

Microsoft® Windows® XP (32-bit), Windows Server® 2003 (32-bit), Windows Server® 2008 (32-bit), Windows Vista® (32-bit), Windows 7® (32-bit and 64-bit)

Mac OS X 10.6 and Mac OS X 10.7


Internet Explorer 7.0 and above, Mozilla Firefox 4.0 and above, Google Chrome, Safari 5.0 and above, Opera 11

Safari 5.0 and above, Mozilla Firefox 4.0 and above, Google Chrome, Opera 11


128MB of RAM (1GB RAM recommended for netbook class devices), 128MB of graphics memory

256MB of RAM, 128MB of graphics memory

AIR 3.3 has the following minimum system requirements:






Processor / Device Hardware

2.33GHz or faster x86-compatible processor or Intel Atom™ 1.6GHz or faster processor for netbook class devices

Intel® Core™  Duo 1.83GHz or faster processor

ARMv7 processor with Vector FPU, Minimum 550MHz, OpenGL ES2.0, H.264 & AAC H/W Decoders

iPod touch (3rd generation) 32 GB and 64 GB model, iPod touch 4, iPhone 3GS, iPhone 4, iPad, iPad 2

Operating System 

Microsoft® Windows® XP, Windows Server® 2003, Windows Server® 2008, Windows Vista® Home Premium, Business, Ultimate, or Enterprise (including 64-bit editions) with Service Pack 2, or Windows 7

Mac OS® X 10.6 and 10.7

AndroidTM 2.2, 2.3, 3.0, 3.1, 3.2 and 4.0

iOS 4.2 and higher


512MB of RAM (1GB recommended)

512MB of RAM (1GB recommended)

256MB RAM 


Reporting Issues

Found a bug? Please submit a bug to the Flash Player and Adobe AIR bug database.

Flash Player and AIR may leverage your graphics hardware to decode and play H.264 video. There may be video issues that can only be reproduced with your particular graphics hardware and driver. When reporting an issue involving video, it is essential to note your graphics hardware and driver, along with your operating system and browser (when using Flash Player), so that we can reproduce and investigate issues. Please be sure to include this information as described in Instructions for Reporting Video Playback Issues. Note: Due to the high volume of email we receive, we are unable to respond to every request.

Thank you for using Adobe® Flash Player® and AIR® and for taking the time to send us your feedback!


Runtime Version History

Release Date Runtime Version(s) New Features Security Enhancements Fixed Issues
June 21st,2012
Flash Player 11.3.300.262 Windows plugin only
N/A N/A Users experience crashes while viewing Flash content in Firefox on Windows(3211153)
June 8th,2012 Flash Player Desktop 11.3.300.257
AIR Desktop
AIR Android

Full screen keyboard input for Flash Player
Low latency audio support for streaming audio through NetStream
Low latency audio support for Sound API
Protected mode for Firefox (Windows® Only)
Texture streaming
Background Updater for Mac
Framelabel events
ReleaseOutside event
Runtime classes introspection
Improved Apple MacOS App Store Support

AIR Mobile:
Platform SDK support for iOS on Windows®
Stylus Support for AndroidTM 4.0 devices
USB Debugging for AIR iOS
Enhanced Background Behavior for AIR iOS
Simulator Support for iOS
Aspect Ratio Enhancements

[Stage 3D for Desktop] Starling content renders in wrong location(3153467)
iOS rendering freezes on some applications when using GPU render mode(3124838)
Anti-aliasing quality settings are not respected in rendermode=gpu(3124862)
[Stage3D] On Mac with Intel HD 3000 scissor rectangle is not correctly set(2959500)
Using Mouselock on Chrome broswer on Windows 7, movement x/y returns absolute values instead of relative values(3152175)
Audio latency issue when multiple instances of Flash are opened in a browser(3084306)
Green screen issue with video playback(3050372)