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Resolving HubSpot Plugin Blocking Issues in WordPress

22 threads Sep 16, 2025

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If you're seeing messages like "blocked by extension" or "requests to the server have been blocked by an extension" when trying to use the HubSpot plugin in your WordPress admin dashboard, you're not alone. This is a common issue that prevents users from accessing the plugin's settings and features. This guide will explain why this happens and walk you through the most effective solutions.

Why Does This Blocking Happen?

Based on community reports, this problem is almost never caused by the HubSpot plugin itself. Instead, it is typically the result of a security or privacy feature in your web browser actively preventing the plugin's scripts from loading correctly. The most common culprits are:

  • Browser Extensions: Ad blockers, privacy enhancers, and script blockers are designed to stop third-party tracking scripts, which can mistakenly identify HubSpot's legitimate resources as something to be blocked.
  • Browser Settings: Strict privacy settings, especially those that "Block third-party cookies" by default (common in Incognito or Private browsing modes), can interfere with the plugin's functionality.

How to Fix the "Blocked by Extension" Error

Follow these troubleshooting steps to resolve the issue.

1. Check Your Browser Extensions

The first and most likely solution is to temporarily disable any ad-blocking or privacy extensions you have installed, such as uBlock Origin, AdBlock Plus, or Ghostery.

  1. Click on your browser's extensions menu (usually a puzzle piece icon in the top-right corner).
  2. Toggle each extension off one by one to see if the HubSpot menu loads correctly after disabling one of them.
  3. If you identify a specific extension causing the conflict, you can often add an exception for your WordPress admin site (e.g., yourdomain.com/wp-admin/*) in that extension's settings instead of disabling it entirely.

2. Adjust Your Browser's Cookie Settings

If you are using a private browsing window or have strict settings enabled, third-party cookies may be blocked.

  1. Open your browser's main Settings.
  2. Navigate to the "Privacy and Security" section.
  3. Find the Cookies setting. If it is set to "Block third-party cookies," change it to "Allow all cookies" temporarily to test.
  4. Refresh your WordPress admin page. If this fixes it, you may want to create a specific exception for your site rather than allowing all cookies globally.

3. Try a Different Browser or Incognito Mode

To confirm the issue is local to your browser, open your WordPress site in a different web browser where you have no extensions installed. Alternatively, open an Incognito or Private window in your current browser—most extensions are disabled in these modes by default. If the HubSpot plugin works there, it confirms an extension or setting in your main browser is the cause.

4. Clear Your Browser Cache and Cookies

Sometimes, outdated cached data or cookies can cause conflicts. Clear your browsing data for the specific site or entirely, then log back into WordPress to see if the issue is resolved.

What If the Problem Persists?

If you have tried all the steps above and the issue continues, it's possible a more robust security plugin on your WordPress site or a server-level firewall could be interfering. However, community discussions indicate browser-related issues are the primary cause in the vast majority of cases.

By systematically checking your browser's environment, you should be able to identify and resolve the blocking issue, restoring full access to your HubSpot plugin tools.

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