I am entirely unable to ever watch a video in Firefox which requires the Adobe Flashplayer plug-in. In fact, IF I activate the plug-in, Firefox goes into a "not responding" mode, which never ends. I DO, after anywhere from 15 to 40 minutes get a script quit responding message, but regardless of how I answer it, another freeze (or the same one) occurs, and after another interminable wait, I get a repeat message. This happens so many times I've left it to run more than 12 hours, then checked it, to find the message windows stacked. When I cleared the last of 20+ windows at the end of the 12 hours, I immediately got another freeze. The only fix to date has been to kill Firefox, either from the Task Manager, or from the "red X, and kill it now instead of waiting" options. Then, on restart, I have to get quickly to the add-ons page, and re-disable Adobe. The version of Firefox I'm running is 35.0.1 The version of Adobe I'm running is Shockwave Flash 16.0.0.305. I ran, over the space of 20 hours, several malware hunters (malware bytes, Microsoft System Security, AVG, AVAST, Spybot S&D, and others I can't remember now) with several issues found and cured. None, though, fixed this. My machine is an ACER Aspire 5732Z, running Windows 7, 64-bit. This problem cropped up about 2 months or less ago. I'm wondering if it is related to the latest version of Shockwave, and possibly occurred after a(n automatic) update.