content isn't blocked again

[enzo]

Adblock Plus doesn't block in-video ads, background images, XMLHttpRequests
Cause: Google Chrome currently doesn't allow blocking any of these request types
Solution: Update to Chrome 17.

( Source: http://adblockplus.org/en/known-issues-chrome )

this isn't the solution.

my system preferences:

Google Chrome 18.0.1025.151
Ubuntu 11.04 - the Natty Narwhal

and i try the site:

youporn.com and i can see all videos without problems.