Catblock is not working for me

vlb's Avatar


16 Mar, 2016 01:58 AM

I am running Adblock and Catblock under Chrome.
With Adblock on, all ads are blocked. With Adblock off, no ads are blocked.
No cats ever show up.

AdBlock Support says: AdBlock no longer supports CatBlock. However, the developers of CatBlock do. :) You can reach them at

So, here I am. DO I need to install a different version of Catblock?

  1. Support Staff 1 Posted by Kieran on 16 Mar, 2016 07:58 AM

    Kieran's Avatar


    Can I check you have the right version of CatBlock installed?

    If you go to the CatBlock options page by clicking the CatBlock button, then clicking "Options", what is the web page's address that you see in the address bar?

  2. 2 Posted by vlb on 16 Mar, 2016 08:47 PM

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    CatBlock 2.7.4

  3. Support Staff 3 Posted by Kieran on 16 Mar, 2016 08:52 PM

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    It seems like you are using the discontinued version of CatBlock by Michael, the creator of AdBlock. The continued maintenance of the extension (which no longer requires installing AdBlock separately, and actually only works with AdBlock disabled) is available for free at or on the Chrome Web Store

    Sorry for any confusion, and let us know if the new "AdBlock with CatBlock" extension works for you!

  4. 4 Posted by vlb on 16 Mar, 2016 09:02 PM

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    I will install the new one.

    Do I also disable Adblock?

  5. 5 Posted by vlb on 16 Mar, 2016 09:45 PM

    vlb's Avatar

    OK. I am now using Adblock With Catblock
    Version 1.2.1
    chrome-extension://mdcgnhlfpnbeieiiccmebgkfdebafodo/options/index.html <chrome-extension://mdcgnhlfpnbeieiiccmebgkfdebafodo/options/index.html>

    And still no cats.

  6. Support Staff 6 Posted by Kieran on 16 Mar, 2016 09:48 PM

    Kieran's Avatar

    Hi vlb,

    Which websites are you testing CatBlock out on? We're still working out how the image replacement system works, but we know it doesn't work everywhere. I'll get back in touch about a good site that we know works in all browsers in a bit to make sure, as the Reddit homepage doesn't show a cat in Chrome anymore.


  7. 7 Posted by vlb on 17 Mar, 2016 02:54 AM

    vlb's Avatar primarily.

  8. Support Staff 8 Posted by Kieran on 17 Mar, 2016 05:59 PM

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    Hi again vlb!

    I've got some good news. I've been discussing with someone who knows the code better than I, and he's actually been working on getting better ad replacement in Chrome and Opera.

    As I have been able to confirm it's working, I'll check if there's anything else he needs to do and then I'll make sure it's in the next release!

    Looks like the internet's meowing once again,

  9. Kieran closed this discussion on 17 Mar, 2016 05:59 PM.

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