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Problem Description

According to Trend Vision One™ Standard Endpoint Protection: New Web Browser Extension Support, the Trend Micro Toolbar for Enterprise browser extension is automatically downloaded and installed on supported endpoints when the "Check HTTPS URLs" option is enabled, starting from Apex One version 14.0.20315.

The Trend Micro extension may block extensions defined by Google Workspace due to a conflict between the ExtensionInstallForcelist registry key and cloud policy.

Trend Micro Toolbar for Enterprise Browser Extension causes Google Workspace ExtensionInstallForcelist Registry Key

Based on the chrome://policy output on affected machines, the cloud source value is overwritten by the platform source value, which causes the conflict.


Scope of Impact

This issue occurs only in environments where Google Workspace administrators have defined custom extensions. Standard deployments without cloud policies are not affected.


Mitigation

At present, there is no supported method to prevent the issue.

Customers must choose either to:

  • Disable the "Check HTTPS URLs" option in Apex One to allow their defined business browser extensions to function properly; or
  • Abandon the use of certain defined extensions in order to keep the "Check HTTPS URLs" option enabled for enhanced security.

A hotfix patch will be released to resolve this conflict.

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