Detecting if AdBlock extension is installed on the browser

Question

I need to detect if the Adblock extension is installed on the user's browser.

I have seen similar question on SO, but most of them suggest to check if the DOM has been modified.

I would rather want to check if the extension is installed (maybe with Javascript ?) on the browser rather than check the DOM. How do i do this ?

http://stackoverflow.com/questions/4869154/how-to-detect-adblock-on-my-website?rq=1 — Preprocezzor, Feb 06 '14 at 09:22
Possible duplicate of [How to detect Adblock on my website?](http://stackoverflow.com/questions/4869154/how-to-detect-adblock-on-my-website) — Cumulo Nimbus, Mar 29 '17 at 15:43

Cracker0dks · Answer 1 · 2014-02-06T09:47:23.417

0

Try the global navigator.plugins variable. With a loop it should work. (JS)

Nice blog to the topic: http://webdevwonders.com/detecting-browser-plugins/

EDIT: For chrome you can try this if you now the APP GUID.

try {
    var appGUID = "nnbmlagghjjcbdhgmkedmbmedengocbn";
    a = new Image();
    a.src = "chrome-extension://"+appGUID+"/icon16.gif";
    if(a.width != 0) {
       //App installed!
    }
} catch(e) {
   //App not installed
}

edited Feb 06 '14 at 09:47

answered Feb 06 '14 at 09:18

Cracker0dks

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I don't see AdBlock in the list of plugins for Chrome (even though I'm using it). – Andy E Feb 06 '14 at 09:21
I too cant see Adblock in the list. – Ankit Rustagi Feb 06 '14 at 09:22
Also my browser shows 6 extensions installed whereas `navigator.plugins.length` returns `8` – Ankit Rustagi Feb 06 '14 at 09:25
Ok it shows only the "hardcore" plugins... then its not possible without dom. Like this: http://stackoverflow.com/questions/4869154/how-to-detect-adblock-on-my-website – Cracker0dks Feb 06 '14 at 09:29
Is it completely impossible to check external extension installations ? – Ankit Rustagi Feb 06 '14 at 09:32
yes i guess... :( check out this: http://stackoverflow.com/questions/19830909/get-a-list-of-installed-extensions-with-javascript – Cracker0dks Feb 06 '14 at 09:34
This (your edit) would work, but what if they update the plugin and change image name? We **are hardcoding** the image name after all. – Ankit Rustagi Feb 06 '14 at 09:56

Detecting if AdBlock extension is installed on the browser

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