For some weird reason I cannot explain, the plugin container randomly dims the volume to to "barely audible", which is especially annoying when I want to listen to music. I found out you can recreate this problem by opening the flash microphone settings menu, but it also happens without that. My first guess was skype intervening, but I disabled everything that could automatically adjust my volume there and it still happens. The pages that are open that could use flash are Youtube, Grooveshark and Facebook.