I have installed and activated Flash Player versions 11.2.202 and 10.1.999 as plugins on Firefox 30.0 running Debian 7.5 on a 32-bit system. I don't see clouds or a refresh icon on your help page. I was able to view the HTML5 video on one of your test pages, but not the other video. I have no trouble with Flash Player on the same computer when it is booted on Windows XP. I manually put libflashplayer.so for v11.2.202 in /usr/lib/mozilla/plugins and in ../firefox/browser/plugins. I have no idea where this file is for v10.1.999, or why I need both versions. Am I missing something?