Seems all the topics on Shockwave are locked, and one is marked gaving a dozen things to 'try'. I have had 3 updates to, FF, updated, uninstalled, updated, renewed FF, Shockwave, Silverlight, installed, uninstalled, safe mode, unsafe-mode (verses safe mode) - it still messes up and hangs. This has been a problem for two years, and for two years Moz depended on it's users to fix it. One topic on the matter says that when Moz re-opened the topic found 15,000 hits in a week, would that not suggest that there is a BIG problem with Moz including Sockwave in FF? I've been a fan of Moz since the first Netscape, and there is really nothing else out there that doesn't take over our computers and try to read our minds (almost - probably not far away). I tried every fix available, except switch to - uggggg - Chrome and try to hide some of my private life from Googoyle. But I'm sad to say, I'm on my way, Won't be back not any a day My heart is down, my head is turning around I had to leave for the next best browser in town. Apologies to Harry Belafonte and BURGIE, IRVING. Darn - and Moz FF was the only browser I ever trusted, and would gladly pay for - if it worked.

http://www.zdnet.com/mozilla-edges-closer-to-replacing-flash-with-javascript-7000021499/ 
http://www.webdesignerdepot.com/2013/10/mozilla-takes-on-flash/
http://www.i-programmer.info/news/167-javascript/5113-shumway-mozillas-javascript-flash-player.html