if you visit this
ADULT XXX WEBSITE NAUGHTY DENTIST(?)
with Firefox 3.0.9 and NoScript 1.9.2 (javascript turned on)
and lose focus from the main window (click location bar for example)
then left click directly on embedded flash movie to turn it on, you will get pop up in background
if you do same, and right click, firefox will block pop up successfully
if you left click somewhere on page, where no links/flash.. then click on flash, first click
doesn't prompt, but second click prompts to enable
also, minor issue with same site, is div overlapping obscuring some content (movie stats)
both of these seem to go away when I disable noscript
anyway, thats my take on the situation, if i'm wrong I apologize in advance

Keep up the good work, thank you