<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I gave it a try and had the same results: Firefox 4.0 on Mac OS X is really slow when viewing with Flash a video at 1080p .<div><br></div><div>I viewed the same video on Nightly and works fine.</div><div><br></div><div><br></div><div><br></div><div>Video in Flash at 1080p: <a href="http://www.youtube.com/watch?v=4N2YWRJ-ppo">http://www.youtube.com/watch?v=4N2YWRJ-ppo</a> (remember to select the 1080p in the menu)</div><div><br></div><div>Firefox: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0) Gecko/20100101 Firefox/4.0</div><div><br></div><div>Nightly: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:6.0a1) Gecko/20110420 Firefox/6.0a1</div><div><br></div><div>OS X 10.6.7</div><div><br></div><div>MacBook Pro, 2.4 GHz Intel Core 2 Duo </div><div><br></div><div><br></div><div><br></div><div>Miguel</div><div><br></div><div><br><div><div>On Apr 20, 2011, at 5:39 PM, Andrew Thorp wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>
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<span>Has anyone else noticed flash in Firefox 4 (on Mac OS X) is painfully slow when the .swf grows larger than 1000px? The speed of flash is poor in Firefox/Mac. Nightly Builds seem to have some speed increase (even if it is just perceived speed) when dealing with flash, but I was wondering if I'm the only one noticing this!<br>
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</div><div><span>Andrew</span></div>
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