Recent answers to Why does Adobe Flash player crash so much?https://support.mozilla.org/en-US/questions/9001732011-11-27T15:03:05-08:00Try to disable the hardware acceleration in the Flash Player.
See:
https://support.mozilla.com/kb/2011-11-27T15:03:05-08:00cor-elhttps://support.mozilla.org/en-US/questions/900173#answer-280621<p>Try to disable the hardware acceleration in the Flash Player.
</p><p>See:
</p>
<ul><li> <a href="https://support.mozilla.com/kb/Cannot+view+full+screen+Flash+videos" rel="nofollow">https://support.mozilla.com/kb/Cannot+view+full+screen+Flash+videos</a>
</li><li> <a href="http://www.youtube.com/swf_test.html" rel="nofollow">http://www.youtube.com/swf_test.html</a> (right-click the player: Settings)
</li></ul>
<p>Flash "Display settings" window:
</p>
<ul><li> <a href="http://www.macromedia.com/support/documentation/en/flashplayer/help/help01.html" rel="nofollow">http://www.macromedia.com/support/documentation/en/flashplayer/help/help01.html</a>
</li></ul>
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<ul><li> <a href="http://kb2.adobe.com/cps/839/cpsid_83952.html" rel="nofollow">http://kb2.adobe.com/cps/839/cpsid_83952.html</a>
</li><li> <a href="http://kb2.adobe.com/cps/409/kb409116.html" rel="nofollow">http://kb2.adobe.com/cps/409/kb409116.html</a>
</li></ul>