ads turn fullscreen and can't be closed (rather hard)

[Matthias Plock]

Binary package hint: firefox-3.0

Some sites (uploaded.to for instance) have pop-up ads attachted to their downloadlinks (which isn't bad), but they turn fullscreen (REAL fullscreen - overlapping OS-controls) sometimes. Like when you hit F11, except for you can't reach the closing button. File, Edit and all the other options are still available, but the only closing option there is to close the entire browser, which I usually don't want to do.
I tried to reproduce it to make a screenshot but it didn't work.
My suggestion would be to cap pop-ups to a certain size (like 640x480), so they don't become REALLY annoying. But you are the devs, so you might have better ideas to solve that issue.

Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9.0.1) Gecko/2008072820 Firefox/3.0.1
Adblock Plus (should actually prevent this from happening :>)
Filterset G-Updater
Ubuntu 8.04

ProblemType: Bug
Architecture: i386
Date: Tue Aug 26 20:53:11 2008
DistroRelease: Ubuntu 8.04
NonfreeKernelModules: nvidia
Package: firefox-3.0 3.0.1+build1+nobinonly-0ubuntu0.8.04.3
PackageArchitecture: i386
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: firefox-3.0
Uname: Linux 2.6.24-16-generic i686

[frizzle21 (frederik-nnaji)]

i've been having this for a while now... it's really getting on my nerves.
firefox mostly.. gotta watch carefully to find out whether any other program is involed.