Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
i'm experiencing blank popup after logging in facebook connect. it will happen right after i submitted name, username and email in the box. ive changed the .htaccess to original but still no go. please help
Since it looks like an javascript conflict I suggest to set your site under maintenance mode, and try to disable all extensions exept of those listed below, in such way you should be able to track this problematic extension. You can also try to download whole page on your hdd and create an copy of it on some dev domain, and there disable all extensions.
Authentication - Joomla!
User - Joomla!
Azrul System Mambot For Joomla
jomsocial facebook connect