Firefox, if any of use it also gives you full access to the source, images, flash you name it also there add ons enable it too. I tried the disable right click method but i just found it made my site look tacky and its pratically useless if someone really wants that content that you have. They will get it somehow.

Though if you want to copyright and image, just put a faint logo of your company in the left bottom corner or a slightly transparent one in the center.

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