Microsoft blocks Chrome on Windows due to a security flaw: what happened and how it was fixed

What caused Chrome to crash

Microsoft activated a block on Google Chrome on Windows computers through its Family Safety feature after detecting that the browser could bypass parental controls and allow minors to access unauthorized content without supervision.

The company explained that Chrome had a vulnerability that interfered with filtering policies, so it decided to block its use while working on a coordinated solution with Google.

The flaw affected home users with child accounts and educational settings that rely on Family Safety to manage screen time, web filtering, and app usage.

The block was implemented without warning and caused Chrome to not open or to close immediately, even on devices where the browser was previously approved. In some cases, the system displayed a request to “Request permission to use this app,” but the request was not received by guardians, leaving students and families without access to their primary browser.

Microsoft acknowledged the problem and explained that the behavior was linked to the web filtering component of Family Safety, which requires cataloging each browser version to apply blocks or permissions. When Chrome was updated, the new version was temporarily removed from the list, disrupting the approval flow and, as a containment measure, preventing it from running.

The company indicated that it worked on two fronts: restoring parental consent notifications and updating the lists of blocked and allowed versions for Chrome and other browsers.

Temporary measures and current status

As an immediate mitigation, Microsoft recommended enabling Family Safety activity reporting to reset approval requests and reviewing Edge filters and content rules to prevent unwanted blocks. In managed environments, some IT managers opted for one-time policy adjustments or temporarily allowed the use of alternative browsers until the control lists stabilized.

Microsoft assured that it worked with Google to correct the interaction between Chrome and Windows controls, and that the service received updates to normalize the permission flow and prevent unexpected shutdowns.

For users still experiencing issues, it is recommended to verify that Family Safety is up to date, re-approve Chrome on the child’s account, and confirm that the browser version is not held back by an outdated policy after an automatic update.

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Fuente: https://hipertextual.com/2025/06/microsoft-esta-bloqueando-chrome-windows-seguridad