This webpage was blocked by an extension, ERR_BLOCKED_BY_CLIENT

You are not alone if you are facing the error – ERR_BLOCKED_BY_CLIENT. This error has been reported by quite a few Chrome users on their Windows PC – and the issue seems to be with some plugin or extension.

This webpage was blocked by an extension (ERR_BLOCKED_BY_CLIENT)

ERR_BLOCKED_BY_CLIENT

The most probable causes of this issue are:

  1. An extension on Chrome is blocking the webpage.
  2. The version of Chrome is obsolete.
  3. More than 100 bookmarks are present in the Bookmark Manager.

Before attempting the following suggestions solution, you should update Google Chrome to the latest version:

  1. Open the web page in Incognito Mode
  2. Disable and remove the extension causing the problem
  3. Remove surplus bookmarks

Proceed to the following solutions sequentially to resolve the problem:

1] Open the web page in Incognito Mode

The interesting thing about Incognito Mode is that it works sans any extensions. If any extension was causing the problem, this is one really good method to isolate the case.

Simply open any webpage on Google Chrome and press CTRL+SHIFT+N. This would trigger open a window in Incognito Mode.

Try opening the troublesome webpage in this window. If it works, the issue could be with the extensions.

2] Disable and remove the extension causing the problem

Once you have isolated the cause and are sure that an extension is causing the problem, you could proceed with disabling the problem-causing extension. The tough part would be recognizing the extension.

We could use hit and trial to find the culprit extension, but here are a few suggestions.

Disable any ad-blocker extension since they are known to cause such issues. Then try disabling the VPN, anti-virus or anti-malware extensions.

If you are using the Bookmark Manager extension, please remove it from Chrome and reinstall it.

3] Remove surplus bookmarks

Remove bookmarks

In case your browser is supporting more than 100 bookmarks, you could consider deleting the surplus ones. To do so, open the bookmark library (type the address chrome://bookmarks/ on the Google Chrome address bar and hit Enter), press SHIFT, and select the surplus bookmarks using the arrow keys.

Hit Delete to remove them.

Hope it helps!

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Karan Khanna is a passionate Windows 10 user who loves troubleshooting Windows problems in specific and writing about Microsoft technologies in general.