Not a bug
I continue to experience issues in Chrome/Mac (13.0.782), even after I e-mailed you a couple months ago, told you about them, and you said you might have fixed them :)
I recommend you simply download Chrome, open your site, log in, and attempt to get the URL of an image to copy.
Invariably there's a "cboxOverlay" or "cboxTitle" DIV that's block-level and overlaid on the entire screen or on top of a single JS popup. It blocks mouse clicks and interactions. I have to right click "Inspect Element" and remove the overlaid DIVs to get it to work, and oddly enough, this doesn't affect the page layout or function in the least.
Test in Chrome - you've got to trust their rendering above all others, given the crazy Acid tests it passes... and it's becoming even more popular than Firefox. I'd be surprised if you didn't see exactly the same bugs. Thanks!
Customer support service by UserEcho