Firefox 10.0.2 Tab Problem

I just upgraded to Firefox 10.0.2. When I click on a thumbnailed image link nothing happens. My whole screen kinda just flickers.

I was using Firefox 3.6 until yesterday and thumbnailed links would always open in a new tab without any problem.

All my settings for 10.0.2 are the same as they we're for 3.6.

I can't figure this out. Can anyone help? Thank you.

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I just found the problem. It was a pop up blocker problem. I somehow subscribed to a block list I hadn't before.

Mod, please delete this thread. Thank you