New Flash updates have been released today. In addition to this there have been some good changes for flash on firfox with the addition of the sandbox. More info on the sandbox and a good explanation can be found here http://blogs.adobe.com/asset/2012/06/inside-flash-player-protected-mode-for-firefox.html
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The original article/video can be found at Adobe Updates for Flash Player. More info can be found here –> http://www.adobe.com/support/security/bulletins/apsb12-14.html, (Sat, Jun 9th)