I know it's possible to disable pop-ups, and that's the default behavior, but It's not affecting the pop-unders.

  • 1
    Have you tried a general-purpose ad-blocker? I use AdBlockPlus for chrome and can't remember seeing any pop-unders, though I don't browse to sites that might have them very much.
    – Fake Name
    Apr 8, 2012 at 11:28
  • AdBlockPlus is for you! Internet will "look different", in a pleasant way :) Jun 21, 2012 at 13:40
  • Do you have a link to demonstrate this effect? I would like to take a look to see how they circumvent the blocking.
    – J.C.
    Dec 7, 2012 at 9:06
  • @J.C. Try subtitle.co.il, use the search box to trigger the pop-under
    – mokalan
    Dec 10, 2012 at 0:04
  • What is pop-under ?
    – Jadav
    Mar 29, 2013 at 23:32

4 Answers 4



but you need to block all scripts on a domain using Chrome's own script blocking feature.


Pop-unders are usually via JavaScript. In order to disable them, I block javascript on the specific site using the extension ScriptNo Chrome's build-in script blocking in:

Settings → Show advanced settings → Content settings → JavaScript → JavaScript Exceptions

At the moment Chrome's API do not allow proper script blocking which is also why Firefox' NoScript developer has not yet ported his extension. Third-party extensions like ScriptNo suffer from the same problem.

The lack of needed API can allow scripts to still load the first time you visit a website.

By design there is no option for extensions to effectively block scripts like in Firefox, therefore the only way to stop this behavior is to block all scripts on a domain using Chrome's settings which I mentioned at the top.

  • It's not working. I think the use a different method for doing it.
    – mokalan
    Feb 6, 2012 at 22:27
  • @mokalan You're right, I've radially changed my answer now. Please take another look.
    – gentmatt
    Jul 24, 2012 at 16:42

Chrome allows you to set preferences for EACH specific site.

Click on the icon in the browser.

Opens a window allowing to set Java and so on specific to that site.

Now to the pop-unders.

I personally use the Chrommes Poper Blocker extension.

It works for me, but then I have not visited your websites.

Poper Blocker 1.69 Blocks all these annoying popups and popunders that pop no matter!

If interested, get it here:



I have tried lot of different options, addons, scripts, but sorry to disappoint you mate, none of them works perfectly. Some pop-ups do find a way to evade all such methods

  • Please name a few sites that evade all methods so that I can check for myself. I'm especially interested in sites that to not use javascript to trigger pop-unders.
    – gentmatt
    Jul 24, 2012 at 16:44

Here is a video showing you how to do it. https://www.youtube.com/watch?v=WBiOlO1jwX4

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