Logo and Slider breaks on Firefox

Sir,
Thanks very much for producing a great plugin.
I have installed the plugin, this is working well in chrome, but when we opened website in Firefox, the the website is breakdown (regarding logo and slider).

After deactivating this plugin website is ok in all browsers.So, please help me regarding this,

My website is here http://directiontrader.com/

Regards
Subhash

http://wordpress.org/extend/plugins/wordpress-https/