If you whitelisted a website but no longer want to allow ads there, click the AdBlock button in the browser toolbar and select Resume blocking ads.


Alternatively:

  1. Click the AdBlock button in the browser toolbar and select Options
  2. On the CUSTOMIZE tab next to "Manually edit your filters," click Edit.
  3. Delete the filter rules that contain the name of the site you whitelisted.
  4. Click Save.
  5. Reload the page where you want to block ads.