Strange issue with Safari!!!!

Hi guys,

Having some strange issue with Safari. I can't install any extensions, and the extensions tab in preferences shows non of them, which isn't true (I know I have a flickr extension that is installed and working.

Done a reinstall for Mountain Lion, same issue still exist.

Searched allover the net for a solution but couldn't find any.

Any clue??

Appreciate it.

Regards
Hattan

 

So, no clue, I suppose?