pop up window comes inspite of it being blocked in firefox preference

[tapas_mishra]

While browsing following page
http://www.indianrail.gov.in/
I get a random window popped up on my box
the link which pops up is of following page
http://n.admagnet.net/panda/www/delivery/ac.php?BAYGBw8ZBQlTXUFFQ0tSDxkZHRAeRk9FTk2m09bByMr FzLW6sru%2Bq%2Fru4vb356nK9Pv59%2FG96%2FTq99TE2teZl YDUx9zYyMmQiNvZ3NfcwcGLh57azouBm87QsLSy%2FvTjtaSy9 Pg%3D

In case any one wants to see what I am trying to tell just open that
page www.indianrail.gov.in and try to click on some menu button in navigation bar.
You will see an advertisement "Play online games"

Now I would like to tell
Firefox-->Edit-->Preferences-->Content-->Block Pop up windows
there is a tick on that box.
Also as I open that page
http://www.indianrail.gov.in/
I do see a message in firefox which says this page tried to open pop
up windows which have been blocked.
And inspite of this message I get to see that advertisement of
"playing online games"
It has been so frustrating and annoying to each time close that pop up.
My question is inspite of the option of blocking pop up windows
enabled why do I get to see this advertisement.
Can I some how stop this behavior.
I use Lucid 64 bit and Firefox 3.6.10

[PRC09]

You may install AdbblockPlus in Firefox and see if that will work for you...


https://addons.mozilla.org/en-US/firefox/addon/1865/

[jamesbon]

Thanks this works great.