Great questions.
I am using FF 24.0 and I browser searched “about:config” “javascript.enabled” right click toggle on.
Still FF will not work. However it does work in Chrome! ??
I also checked it on my mobile browsers (Chrome, FF, Dolphin,) and default for Android 4.1.2. with no luck.
Is there a premium version of your plugin?
Thanks again Youdaman great plugin