If you want ads removed from Google’s Linux-based Chrome browser you need to do three things.  Assuming you have already installed Chrome…

(1) Download AdSweep.user.js from http://adsweep.org

(2) Install AdSweep.user.js here:

"~/.config/google-chrome/Default/User Scripts"

(3) Add —;enable-user-scripts to the command line.  It should look something like this:

/opt/google/chrome/google-chrome --enable-user-scripts %U

More information can be found: here